2 Samuel 7:11, 27

even from the day that I commanded judges to be over My people Israel; and I will give you rest from all your enemies. The LORD also declares to you that the LORD will make a house for you.

For You, O LORD of hosts, the God of Israel, have made a revelation to Your servant, saying, ‘I will build you a house’; therefore Your servant has found courage to pray this prayer to You.