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:
I will give them one heart - all seeking the Lord with one accord, in contrast to their state when only scattered individuals sought Him (Ezekiel 11:19-20; Zephaniah 3:9).
For ... good of them - (Psalms 34:12; Psalms 34:15, "What man is he that desireth life ... that he may see good? ... Depart from evil, and do good ... the eyes of the Lord are upon the righteous," etc.)