Matthew Henry's Concise Commentary on the Bible - Acts 1:1-5
1-5 Our Lord told the disciples the work they were to do. The apostles met together at Jerusalem; Christ having ordered them not to depart thence, but to wait for the pouring out of the Holy Spirit. This would be a baptism by the Holy Ghost, giving them power to work miracles, and enlightening and sanctifying their souls. This confirms the Divine promise, and encourages us to depend upon it, that we have heard it from Christ; for in Him all the promises of God are yea and amen. read more
George Haydock's Catholic Bible Commentary - Acts 1:20
His bishoprick. The words were prophetically spoken in the Psalms, of the traitor Judas. (Witham) --- Let their habitation. In some manuscript copies, in both Greek and Syriac, we read his. In the Psalms, the text was written against the Jews, the persecutors of Christ in general; but in this place, Peter applies it to Judas in particular. (Estius, in a different place.) read more