tn L&N 67.121 has “to extend time unduly, with the implication of lack of decision—‘to wait, to delay.’ νῦν τί μέλλεις … ἀναστὰς βάπτισαι ‘what are you waiting for? Get up and be baptized’ Ac 22:16.”

tn Grk “getting up.” The participle ἀναστάς (anastas) is an adverbial participle of attendant circumstance and has been translated as a finite verb.

sn The expression have your sins washed away means “have your sins purified” (the washing is figurative).

sn The expression calling on his name describes the confession of the believer: Acts 2:17–38, esp. v. 38; Rom 10:12–13; 1 Cor 1:2.