"Wherefore I shall be ready always to put you in remembrance of these things, though ye know them, and are established in the truth which is with _you_. And I think it right, as long as I am in this tabernacle, to stir you up by putting you in remembrance; knowing that the putting off of my tabernacle cometh swiftly, even as our Lord Jesus Christ signified unto me. Yea, I will give diligence that at every time ye may be able after my decease to call these things to remembrance. For we did not follow cunningly devised fables, when we made known unto you the power and coming of our Lord Jesus Christ, but we were eye-witnesses of His majesty. For He received from God the Father honour and glory, when there came such a voice to Him from the excellent glory, This is My beloved Son, in whom I am well pleased: and this voice we _ourselves_ heard come out of heaven, when we were with Him in the holy mount."--2 PETER i. 12-18.
Up to this point the Apostle has spoken of God's abundant grace and the consequent duties of believers. And he has set forth these duties in the most encouraging language. He has pictured first the gift of Divine power, and the precious promises of God, whereby men may be helped to walk onward and upward; and when the labour is ended he has pointed to the door of Christ's eternal kingdom, open to admit the saint to His everlasting rest. Now he turns to describe the duty which he feels to be laid upon himself, and faithful is he in the discharge thereof. "Strengthen thy brethren," is constantly ringing in his ears. _Wherefore_, he says, _I shall be ready always to put you in_ _remembrance of these things_. He dreads that taking hold of forgetfulness--that λήθην λαβὼν--of which he has spoken before, and against which constant diligence is needed. So far as in him lies, the perilous condition shall come upon none of them. The verb in the best texts expresses far more than that which is rendered in the Authorised Version, "I will not be negligent." It implies a sense of duty and the intention of fulfilling it; it bears within it, too, the thought (which is strengthened by the word _always_) that there may be need for such reminding, if not from internal weakness, yet by reason of external dangers. And to bring to the mind of the Churches the gracious bounty of God in Christ, and to set down the steps whereby the graces bestowed should be fostered and increased, is a subject worthy of an Apostle, a theme which no amount of exhortation can exhaust, and one which ought to prompt the hearers to gratitude and obedience.
_Though ye know them, and are established in the truth which is with you._ Knowledge of things that pertain unto godliness is barren unless it be wrought out in the life. Yet knowledge and practice do not always go hand in hand. This was one of the lessons taught by Jesus as He washed the disciples' feet: "If ye know these things, blessed are ye if ye do them" (John xiii. 17). St. Peter longs that the converts should make this blessedness their own. His life's work is to watch for them, that they be not remiss in doing. To none can such a duty more peculiarly belong than to him who holds Christ's special commission to feed the flock. By "the truth which is with you" the Apostle appears to be alluding to the varying degrees of advancement which there must be among the members of the Churches. All have travelled some way along the road which he has shown them; all have some of the truth within their grasp. They have set their feet on the path, though they be planted with different degrees of firmness. What is needed for each and all is to press forward, not to rest in the present, but to hasten to what lies beyond. For the truth of God is inexhaustible.