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,[a]
as you did that day at Massah[b] 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;