William Barclay's Daily Study Bible - 2 Timothy 3:14-17
3:14-17 But as for you, remain loyal to the things which you have learned, and in which your belief has been confirmed, for you know from whom you learned them, and you know that from childhood you have known the sacred writings which are able to give you the wisdom that will bring you salvation through the faith which is in Christ Jesus. All God-inspired scripture is useful for teaching, for the conviction of error, for correction, and for training in righteousness, that the man of God may... read more
Matthew Henry's Complete Commentary - 2 Timothy 3:10-17
Here the apostle, to confirm Timothy in that way wherein he walked, I. Sets before him his own example, which Timothy had been an eye-witness of, having long attended Paul (2 Tim. 3:10): Thou hast fully known my doctrine. The more fully we know the doctrine of Christ and the apostles, the more closely we shall cleave to it; the reason why many sit loose to it is because they do not fully know it. Christ's apostles had no enemies but those who did not know them, or not know them fully; those... read more