The Heart: Harden Not, Against God
Source: TTT
Psalm 95:8
do not harden your hearts as you did at Meribah, in the day at Massah in the wilderness,
Hebrews 4:7
God again designated a certain day as “Today,” when a long time later He spoke through David as was just stated: “Today, if you hear His voice, do not harden your hearts.”