³ To these [men] He also showed Himself alive after His suffering [in Gethsemane and on the cross], by [a series of] many infallible proofs and unquestionable demonstrations, appearing to them over a period of forty days and talking to them about the things concerning the kingdom of God. ⁴ While being together and eating with them, He commanded them not to leave Jerusalem, but to wait for what the Father had promised, “Of which,” He said, “you have heard Me speak.^{(A) 5} For John baptized with water, but you will be baptized and empowered and united with the Holy Spirit, not long from now.”