“Because of the increase
The love of many
Will grow cold.”
καὶ διὰ τὸ πληθυνθῆναι τὴν ἀνομίαν ψυγήσεται ἡ ἀγάπη τῶν πολλῶν.
This little saying about love growing cold is unique to Matthew. Jesus continued saying that due to the increase of lawlessness (καὶ διὰ τὸ πληθυνθῆναι τὴν ἀνομίαν) in Jewish society, the love of many would grow cold (ψυγήσεται ἡ ἀγάπη τῶν πολλῶν). In the midst of all this tribulation, revolutions, and destructions, the Christian love, their agape (ἡ ἀγάπη) would cool or grow cold.