For this is good and acceptable - That is, it is good and acceptable to God that we should pray for all people. The reason is, that he desires their salvation, and hence it is agreeable to him that we should pray for it. If there were no provision made for their salvation, or if he was unwilling that they should be saved, it could not be agreeable to him that we should offer prayer for them.
Related Commentaries of 1 Timothy 2:3
1 Timothy 2:3
3 For this is good and acceptable in the sight of God our Saviour;