21 For the sake of your word and according to your will, you have done this great thing and made it known to your servant.

Read 2 Samuel 7:21 Using Other Translations

For thy word's sake, and according to thine own heart, hast thou done all these great things, to make thy servant know them.
Because of your promise, and according to your own heart, you have brought about all this greatness, to make your servant know it.
Because of your promise and according to your will, you have done all these great things and have made them known to your servant.