Matthew 2:18
In Rama was there a voice heard, lamentation, and weeping, and great mourning, Rachel weeping for her children, and would not be comforted, because they are not.
Cross-reference
Genesis 35:16-20 records Rachel's death in childbirth near Bethlehem — the exact location and person behind Jeremiah's prophecy of Rachel weeping.
Genesis 37:33-35 shows Jacob refusing to be comforted over Joseph — the exact phrase 'refused to be comforted' parallels Rachel's inconsolable grief.
Jeremiah 31:15 is the exact prophecy quoted here — Rachel weeping for her children, applied to the Bethlehem massacre.
Genesis 35:19 specifies Rachel's burial at Ephrath (Bethlehem) — the geographical anchor for the prophecy that Rachel weeps from her tomb.
In Genesis 48:7, Rachel dies near Bethlehem. This location links her weeping in Jeremiah's prophecy to the massacre of infants in Bethlehem.
Jeremiah 9:17-21 summons wailing women because death has entered — similar atmosphere of grief over children's deaths.