Parable of the Mustard Seed (etching, Bowyer Bible),
Jan Luyken, 1650

Translation of the Gospel According to St. Matthew

At that time Jesus spoke to the multitudes this parable: The kingdom of heaven is like to a grain of mustard seed, which a man took and sowed in his field: which is the least indeed of all seeds: but when it is grown up, it is greater than all herbs and becomes a tree, so that the birds of the air come and dwell in the branches thereof. Another parable He spoke to them: The kingdom of heaven is like to leaven, which a woman took and hid in three measures of meal, until the whole was leavened. All these things Jesus spoke in parables to the multitudes: and without parables He did not speak to them: that it might be fulfilled which was spoken by the Prophet, saying: I will open my mouth in parables, I will utter things hidden from the foundation of the world.


A Message From St. Pope Pius X’s Acerbo Nimis (On Teaching Christian Doctrine), 1905.

The enemy has, indeed, long been prowling about the fold and attacking it with such subtle cunning that now, more than ever before, the prediction of the Apostle to the elders of the Church of Ephesus seems to be verified: I know that … fierce wolves will get in among you, and will not spare the flock (Acts 20:29) . Those who still are zealous for the glory of God are seeking the causes and reasons for this decline in religion… The chief cause of the present indifference and, as it were, infirmity of soul, and the serious evils that result from it, is to be found above all in ignorance of things divine. This is fully in accord with what God Himself declared through the Prophet Osee: «And there is no knowledge of God in the land. Cursing and lying and killing and theft and adultery have overflowed: and blood hath touched blood. Thereafter shall the land mourn, and everyone that dwelleth in it shall languish (Hos 4:1-3) .

It is a common complaint that there are large numbers of Christians in our own time who are entirely ignorant of those truths necessary for salvation… They rarely give thought to God, the Supreme Author and Ruler of all things, or to the teachings of the faith of Christ. They know nothing of the Incarnation of the Word of God, nothing of the perfect restoration of the human race which He accomplished. Grace, the greatest of the helps for attaining eternal things, the Holy Sacrifice and the Sacraments by which we obtain grace, are entirely unknown to them. They have no conception of the malice and baseness of sin; hence they show no anxiety to avoid sin or to renounce it…

How many and how grave are the consequences of ignorance in matters of religion! And on the other hand, how necessary and how beneficial is religious instruction! It is indeed vain to expect a fulfillment of the duties of a Christian by one who does not even know them.

Here then it is well to emphasize and insist that for a priest there is no duty more grave or obligation more binding than this. Who, indeed, will deny that knowledge should be joined to holiness of life in the priest? For the lips of the priest shall keep knowledge (Mal 2:7) . The Church demands this knowledge of those who are to be ordained to the priesthood. Why? Because the Christian people expect from them knowledge of the divine law, and it was for that end that they were sent by God. «And they shall seek the law at his mouth; because he is the angel of the Lord of hosts» (ibid. 2:7) . Thus the bishop speaking to the candidates for the priesthood in the ordination ceremony says: Let your teaching be a spiritual remedy for God’s people; may they be worthy fellow-workers of our order; and thus meditating day and night on His law, they may believe what they read, and teach what they shall believe (Roman Pontifical).

Perhaps there are some who, wishing to lessen their labors, would believe that the homily on the Gospel can take the place of catechetical instruction. But for one who reflects a moment, such is obviously impossible. The sermon on the holy Gospel is addressed to those who should have already received knowledge of the elements of faith. It is, so to speak, bread broken for adults. Catechetical instruction, on the other hand, is that milk which the Apostle Peter wished the faithful to desire in all simplicity like newborn babes.

The task of the catechist is to take up one or other of the truths of faith or of Christian morality and then explain it in all its parts; and since amendment of life is the chief aim of his instruction, the catechist must needs make a comparison between what God commands us to do and what is our actual conduct. After this, he will use examples appropriately taken from the Holy Scriptures, Church history, and the lives of the saints–thus moving his hearers and clearly pointing out to them how they are to regulate their own conduct. He should, in conclusion, earnestly exhort all present to dread and avoid vice and to practice virtue.

We are indeed aware that the work of teaching the Catechism is unpopular with many because as a rule it is deemed of little account and for the reason that it does not lend itself easily to the winning of public praise. But this is a judgment based on vanity and devoid of truth.

Now, if we cannot expect to reap a harvest when no seed has been planted, how can we hope to have a people with sound morals if Christian doctrine has not been imparted to them in due time? It follows, too, that if faith languishes in our days, if among large numbers it has almost vanished, the reason is that the duty of catechetical teaching is either fulfilled very superficially or altogether neglected. It will not do to say, in excuse, that faith is a free gift of God bestowed upon each one at Baptism. True enough, when we are baptized in Christ, the habit of faith is given, but this most divine seed, if left entirely to itself, by its own power, so to speak, is not like the mustard seed which grows up… and puts out great branches (Mark 4:32). Man has the faculty of understanding at his birth, but he also has need of his mother’s word to awaken it, as it were, and to make it active. So too, the Christian, born again of water and the Holy Spirit, has faith within him, but he requires the word of the teaching Church to nourish and develop it and to make it bear fruit. Thus wrote the Apostle: «Faith then depends on hearing, and hearing on the word of Christ; (Rom 10:17) and to show the necessity of instruction, he added, How are they to hear, if no one preaches (Rom 10:14)?

We do not, however, wish to give the impression that this studied simplicity in imparting instruction does not require labor and meditation– on the contrary, it demands both more than any other kind of preaching. It is much easier to find a preacher capable of delivering an eloquent and elaborate discourse than a catechist who can impart a catechetical instruction which is praiseworthy in every detail. No matter what natural facility a person may have in ideas and language, let him always remember that he will never be able to teach Christian doctrine to children or to adults without first giving himself to very careful study and preparation. They are mistaken who think that because of inexperience and lack of training of the people the work of catechizing can be performed in a slipshod fashion. On the contrary, the less educated the hearers, the more zeal and diligence must be used to adapt the sublime truths to their untrained minds; these truths, indeed, far surpass the natural understanding of the people, yet must be known by all–the uneducated and the cultured– in order that they may arrive at eternal happiness.

…We pray and entreat you to reflect on the great loss of souls due solely to ignorance of divine things.