Psalm 95:7-9
Today, if you hear his voice, do not harden your hearts, as at Meribah, as on the day at Massah in the wilderness, when your fathers put me to the test and put me to the proof, though they had seen my work.

To evangelize is to declare on the authority of God what he has done to save sinners, to warn men of their lost condition, to direct them to repent, and to believe in the Lord Jesus Christ.
Mark Dever