Luke 19:42

καί γε ἐν τῇ ἡμέρᾳ σου. Isaiah 55:6; 2 Corinthians 6:2. καί γε is an uncertain reading (omitted in BD) and is only found in Acts 2:18. The day of Chorazin and Bethsaida was past already.

τὰ πρὸς εἰρήνην σου. Perhaps with a paronomasia on the name of Salem or ‘Peace,’ and on the sound though not the derivation of Jerusalem (Yeroo Shalom, ‘they shall see peace,’ comp. Psalms 122:6-7). Such plays on words often spring from deep emotion. (See my Chapter s on Language, pp. 269–276.) Isaiah 48:18, “O that thou hadst hearkened to my commandments! then had thy peace been as a river.”

νῦν δέ. ‘But as things now are.’ The sense is partly causal. The previous sentence is not concluded, by the figure called aposiopesis; in which the apodosis of a sentence is suppressed by the emotion of the speaker. Comp. Luke 13:9; Luke 22:42; Winer, p. 750.

ἐκρύβη. ‘They were hid,’ i.e. the present state of things proves the divine decree by which they were destined to be hidden from thee.