NET
39 I will give them a single-minded purpose to live in a way that always shows respect for me. They will want to do that for their own good and the good of the children who descend from them.
Darby
39 And I will give them one heart, and one way, that they may fear me all [their] days, for the good of them, and of their children after them.
KJV
39 And I will give them one heart, and one way, that they may fear me for ever, for the good of them, and of their children after them: