Matthew Henry on 2 Samuel 7:1-3

David being at rest in his palace, considered how he might best employ his leisure and prosperity in the service of God. He formed a design to build a temple for the ark. Nathan here did not speak as a prophet, but as a godly man, encouraging David by his private judgment. We ought to do all we can to encourage and promote the good purposes and designs of others, and, as we have opportunity, to forward a good work.