For the sake of Your word, and according to Your own heart, You have done all this greatness (and) to let Your servant know. 2 Samuel 7:21

He has set forth by His Word the secrets of His will that He has decided to reveal to us. These He decided to reveal in so far as He foresaw that they would concern and benefit us. John Calvin 1509-64, The Institutes of the Christian Religion

You are great, O Lord God. For there is none like You, nor is there any God besides You, according to all that we have heard with our ears. 2 Samuel 7:22

May my testimony inspire others to praise God.

And who is like Your people, Your very own people forever, . Israel, the one nation on the earth whom God went to redeem for Himself as a people . from Egypt, the nations, and their gods? 2 Samuel 7:23,24

Infinite wisdom cast the design of salvation into the mould of purchase and freedom. The Valley of Vision, Puritan Prayers and Devotions1600/1700s

"Now therefore, O Lord God, the word that You have spoken concerning Your servant and his house, confirm it forever, and do as You have spoken..” 2 Samuel 7:25

Just because God promises doesn't mean that we possess. Through believing prayer like this, God promises and we appropriate. If we don't appropriate in faith, God's promise is left unclaimed. David Guzik's Commentaries

.You, O Lord., have revealed this to Your servant,., "I will build you a house.' Therefore, Your servant has found it in his heart to pray this prayer to You. 2 Samuel 7:27

There is no presumption in taking God at His word. True prayer catches up the promises (displayed in abundance in His word) that have fallen from heaven, and sends them back again, as feathers to the arrows of its petitions. Alexander Maclaren, 1826-1910, British Baptist expository preacher