Acts of the Apostles, Chapter 3, verses 13-15, 17-19
13 withal reprehending them for crucifying Jesus, 17 which, because they did it through ignorance, and that thereby were fulfilled God's determinate counsel and the Scriptures, 19 he exhorteth them by repentance and faith to seek remission of their sins, and salvation in the same Jesus1 John, Chapter 2, verses 1-5
1 He comforteth them against the sins of infirmity, 3 Rightly to know God is to keep his commandments2
2:1 My beloved children - So the apostle frequently addresses the whole body of Christians. It is a term of tenderness and endearment, used by our Lord himself to his disciples, Joh 13:33. And perhaps many to whom St. John now wrotewere converted by his ministry. It is a different word from that which is translated "little children," in several parts of the epistle, to distinguish it from which, it is here rendered beloved children. I write these things to you, that ye may not sin - Thus he guards them beforehand against abusing the doctrine of reconciliation. All the words, institutions, and judgments of God are levelled against sin, either that it may not be committed, or that it may be abolished. But if any one sin - Let him not lie in sin, despairing of help. We have an advocate - We have for our advocate, not a mean person, but him of whom it was said, "This is my beloved son." Not a guilty person, who stands in need of pardon for himself; but Jesus Christ the righteous; not a mere petitioner, who relies purely upon liberality, but one that has merited, fully merited, whatever he asks.
2:2 And he is the propitiation - The atoning sacrifice by which the wrath of God is appeased. For our sins - Who believe.And not for ours only, but also for the sins of the whole world - Just as wide as sin extends, the propitiation extends also .
2:3 And hereby we know that we truly and savingly know him - As he is the advocate, the righteous, the propitiation. If wekeep his commandments - Particularly those of faith and love.
2:5 But whoso keepeth his word - His commandments. Verily in him the love of God - Reconciled to us through Christ. Is perfected - Is perfectly known. Hereby - By our keeping his word.We know that we are in him - So is the tree known by its fruits.To "know him," to be "in him," to "abide in him," are nearly synonymous terms; only with a gradation, - knowledge, communion, constancy.
Luke, Chapter 24, verses 35-48
13 Christ himself appeareth to the two disciples that went to Emmaus, 36 Afterwards he appeareth to the apostles and reproveth their unbelief, 47 giveth them a charge24
24:35 In the breaking of bread - The Lord's Supper.
24:36 Jesus stood in the midst of them - It was just as easy to his Divine power to open a door undiscernibly, as it was to come in at a door opened by some other hand. Mar 16:14, Mar 16:19; Joh 20:19.
24:40 He showed them his hands and his feet - That they might either see or feel the prints of the nails.
24:41 While they believed not for joy - They did in some sense believe: otherwise they would not have rejoiced. But their excess of joy prevented a clear, rational belief.
24:43 He took it and ate before them - Not that he had any need of food; but to give them still farther evidence.
24:44 And he said - On the day of his ascension. In the law, and the prophets, and the psalms - The prophecies as well as types, relating to the Messiah, are contained either in the books of Moses (usually called the law) in the Psalms, or in the writings of the prophets; little being said directly concerning him in the historical books.
24:45 Then opened he their understanding, to understand the Scriptures - He had explained them before to the two as they went to Emmaus. But still they Understood them not, till he took off the veil from their hearts, by the illumination of his Spirit.
24:47 Beginning at Jerusalem - This was appointed most graciously and wisely: graciously, as it encouraged the, greatest sinners to repent, when they saw that even the murderers of Christ were not excepted from mercy: and wisely, as hereby Christianity was more abundantly attested; the facts being published first on the very spot where they happened.

3
3:13 The God of our fathers - This was wisely introduced in the beginning of his discourse, that it might appear they taught no new religion, inconsistent with that of Moses, and were far from having the least design to divert their regards from the God of Israel. Hath glorified his Son - By this miracle, whom ye delivered up - When God had given him to you, and when ye ought to have received him as a most precious treasure, and to have preserved him with all your power.
3:14 Ye renounced the Holy One - Whom God had marked out as such; and the Just One - Even in the judgment of Pilate.