Albert Barnes Commentary 2 Timothy 3:14

"But abide thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them." — 2 Timothy 3:14 (ASV)

But continue you in the things which you have learned and have been assured of. Namely, the truths of religion. Timothy had been taught those truths when a child, and he had been confirmed in them by the instructions of Paul. Amid the errors and seductions of false teachers, Paul now exhorts him to hold fast those doctrines, whoever might oppose them, or whatever might be the consequence. (Compare to 2 Timothy 1:13.)

Knowing of whom you have learned them. Namely, of his mother (2 Timothy 1:5) and of Paul (2 Timothy 1:13). The reference seems to be particularly to the fact that he had learned these truths first from the lips of a mother (2 Timothy 3:15); and the doctrine taught here is that the fact that we have received the views of truth from a parent's lips is a strong motive for adhering to them. It is not to be supposed, indeed, that this is the highest motive, or that we are always to adhere to the doctrines which have been taught us, if, on maturer examination, we are convinced they are erroneous; but that this is a strong reason for adhering to what we have been taught in early life. It is so, because:

1. A parent has no motive for deceiving a child, and it cannot be supposed that a parent would teach that child what the parent knew to be false;

2. A parent usually has had much more experience, and much better opportunities of examining what is true, than the child has;

3. There is a degree of respect which nature teaches us to be due to the sentiments of a parent. A child should depart very slowly from the opinions held by a father or mother; and, when it is done, it should be only as the result of prolonged examination and prayer. These considerations should have the greater weight if a parent has been eminent for piety, and especially if that parent has been removed to heaven. A child, standing by the grave of a pious father or mother, should reflect and pray much, before he deliberately adopts opinions which he knows that father or mother would regard as wrong.