1 John 3:19-21

Verse 19. And hereby. Gr., by this; that is, by the fact that we have true love to others, and that we manifest it by a readiness to make sacrifices to do them good.

We know that we are of the truth. That we are not deceived in what we profess to be; that is that we are true Christians. To be of the truth stands opposed to cherishing false and delusive hopes.

And shall assure our hearts before him. Before God, or before the Saviour. In the margin, as in the Greek, the word rendered shall assure, is persuade. The Greek word is used as meaning to persuade, e.g., to the reception and belief of truth; then to persuade any one who has unkind or prejudiced feelings towards us, or to bring over to kind feelings, to conciliate, and thus to pacify or quiet. The meaning here seems to be, that we shall in this way allay the doubts and trouble of our minds, and produce a state of quiet and peace, to wit, by the evidence that we are of the truth. Our consciences are often restless and troubled in view of past guilt; but, in thus furnishing the evidence of true piety by love to others, we shall pacify an accusing mind, and conciliate our own hearts, and persuade or convince ourselves that we are truly the children of God. See Rob. Lex. sub voce πειθω, I. b. In other words, though a man's heart may condemn him as guilty, and though he knows that God sees and condemns the sins of his past life, yet the agitations and alarms of his mind may be calmed down and soothed by evidence that he is a child of God, and that he will not be finally condemned. A true Christian does not attempt to conceal the fact that there is much for which his own heart and conscience might justly accuse him; but he finds, notwithstanding all this, evidence that he is a child of God, and he is persuaded that all will be well.

(a) "hereby" Jn 13:35 (1) "shall assure" "persuade"
Verse 20. For if our heart condemn us. We cannot hope for peace from any expectation that our own hearts will never accuse us, or that we ourselves can approve of all that we have done. The reference here is not so much to our past lives, as to our present conduct and deportment. The object is to induce Christians so to live that their hearts will not condemn them for any secret sins, while the outward deportment may be unsullied. The general sentiment is, that if they should so live that their own hearts would condemn them for preSent insincerity and hypocrisy, they could have no hope of peace, for God knows all that is in the heart. In view of the past--when the heart accuses us of what we have done--we may find peace by such evidences of piety as shall allay the troubles of an agitated soul, (1Jn 3:9,) but we cannot have such peace if our hearts condemn us for the indulgence of secret sins, now that we profess to be Christians. If our hearts condemn us for present insincerity, and for secret sins, we can never "persuade" or soothe them by any external act of piety. In view of the consciousness of past guilt, we may find peace; we can find none if there is a present purpose to indulge in sin.

God is greater than our heart, and knoweth all things. We cannot hope to find peace by hiding anything from his view, or by any supposition that he is not acquainted with the sins for which our consciences trouble us. He knows all the sins of which we are conscious, and sees all their guilt and aggravation as clearly as we do. He knows more than this. He knows all the sins which we have forgotten; all those acts which we endeavour to persuade ourselves are not sinful, but which are evil in his sight; and all those aggravations attending our sins which it is impossible for us fully and distinctly to conceive, He is more disposed to condemn sin than we are; he looks on it with less allowance than we do. We cannot hope, then, for a calm mind in any supposition that God does not see our sins as clearly as we do, or in any hope that he will look on them with more favour and indulgence. Peace cannot be found in the indulgence of sin in the hope that God will not perceive or regard it, for we can sooner deceive ourselves than we can him; and while therefore, (1Jn 3:19,) in reference to the past, we can only "persuade" our hearts, or soothe their agitated feelings by evidence that we are of the truth now, and that our sins are forgiven; in reference to the present and the future, the heart can be kept calm only by such a course of life that our own hearts and our God shall approve the manner in which we live.
Verse 21. Beloved, if our heart condemn us not. If we so live as to have an approving conscience--that is, if we indulge in no secret sin; if we discharge faithfully every known duty; if we submit without murmuring to all the allotments of Divine Providence.

Then have we confidence toward God. Comp. 1Jn 3:19; 1Jn 2:28; Acts 24:16. The apostle evidently does not mean that we have confidence towards God on the ground of what we do, as if it were meritorious, or as if it constituted a claim to his favour; but that we may so live as to have evidence of personal piety, and that we may look forward with a confident hope that we shall be accepted of him in the great day. The word here rendered confidence--παρρησιαν--means properly boldness; usually boldness or openness in speaking our sentiments. 1Jn 2:28. The confidence or boldness which we have towards our Maker is founded solely on the evidence that he will graciously accept us as pardoned sinners; not in the belief that we deserve his favor.

(b) "heart" Job 27:6, Ps 101:2 (c) "confidence" Heb 10:22
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