Matthew Poole and continuators on Luke 24:48

48 And ye are witnesses of these things.

The few Words in v. 47. are comprehensive of the great duty of the Apostles, 1. To preach Repentance and Remission of Sins. 2. In Christs Name. 3. To all Nations. 4. Beginning at Ierusalem. They were to Preach Repentance, that is, a turning from Sinful Courses, into a Course of Life Consonant to the Will of God, and Remission of Sins, that is, upon Repentance, this they were to Preach in his Name, which may refer either to their Preaching; then our Saviour lets them know that they were to be his Ministers, and to Preach by his Authority, 2 Cor. 5.20. To be Ambassadours for Christ, Stewards of his Mysteries. Or else it may refer to Repentance and Remission of Sins, which are to be Preached in his Name, for the sake of Merits and Satisfaction. They were to Preach this to all Nations. This was prophesied of plentifully, Psal. 2.8. Isa. 49.6. Dan. 7.14. Hos. 2.23. Ioel 2.32. This was a piece of Divine Revelation, which Christ had, till this time, concealed in a great Measure, when he sent out the Twelve, Matth. 10.5. He commanded them not to go to the Gentiles. Beginning at Ierusalem, that is, amongst the Jews. He was prophesied of under the Notion of a King, to be set upon the Lords Holy Hill of Sion. So Psal. 110.2. Isaiah 2.3. & 28.16. & 60. v. 1. in pursuance of this, we shall find the Apostles Preaching only in Iudea, till they had judged themselves unworthy of Eternal Life, then they turned to the Gentiles, Acts 13.38.46.

Marginal references: John 15.27.