Psalm 95:7-11

7 for he is our God and we are the people of his pasture, the flock under his care. Today, if only you would hear his voice, 8 "Do not harden your hearts as you did at Meribah,[1]as you did that day at Massah[2] in the wilderness, 9 where your ancestors tested me; they tried me, though they had seen what I did. 10 For forty years I was angry with that generation; I said, 'They are a people whose hearts go astray, and they have not known my ways.' 11 So I declared on oath in my anger, 'They shall never enter my rest.' "