Acts 2:37

κατενύγησαν τὴν καρδίαν. The verb, without the following noun, is found LXX. Genesis 34:7 (were grieved A.V.) and κατανενυγμένον τῇ καρδίᾳ, Ps. 108:16 of one ‘broken in heart.’ The sense here is, they were stung with remorse at the enormity of the wickedness which had been committed in the crucifixion, and at the blindness with which the whole nation had closed their eyes to the teaching of the prophecies which had spoken of the Messiah.

πρὸς τὸν Πέτρον κ.τ.λ. For these men, who had so clearly set before them the error of the whole people, were the most likely to know what could be done to atone for it.

ἄνδρες�. See Acts 1:16 note.