Jeremiah 31:15: Rachel Weeping and Herod's Slaughter
Jeremiah 31:15 lets God report the grief of mothers who have lost children without softening it. Matthew hears that lament in the slaughter at Bethlehem, and the verse sits inside a promise that God will answer it.
Matthew 2:13–18: Herod, the Flight to Egypt, and Rachel
Matthew tells the flight to Egypt and Herod's slaughter of the boys in Bethlehem without softening either one. He sets the rescue of one child beside the mourning of many and reads both through the prophets.