5 But if any one thinks that these stories are false, I do not strongly insist on them. For, as I am dealing with Christians who profess to understand the Scriptures without any directions from man (and if the fact be so, they boast of a real advantage, and one of no ordinary kind), they must surely grant that every one of us learned his own language by hearing it constantly from childhood, and that any other language we have learned—Greek, or Hebrew, or any of the rest—we have learned either in the same way, by hearing it spoken, or from a human teacher.
Now, then, suppose we advise all our brethren not to teach their children any of these things, because on the outpouring of the Holy Spirit the apostles immediately began to speak the language of every race; and warn every one who has not had a like experience that he need not consider himself a Christian, or may at least doubt whether he has yet received the Holy Spirit? No, no; rather let us put away false pride and learn whatever can be learned from man; and let him who teaches another communicate what he has himself received without arrogance and without jealousy.
And do not let us tempt Him in whom we have believed, lest, being ensnared by such wiles of the enemy and by our own perversity, we may even refuse to go to the churches to hear the gospel itself, or to read a book, or to listen to another reading or preaching, in the hope that we shall be carried up to the third heaven, “whether in the body or out of the body,” as the apostle says, and there hear unspeakable words, such as it is not lawful for man to utter, or see the Lord Jesus Christ and hear the gospel from His own lips rather than from those of men.
Source: Christian Doctrine (New Advent)