God gave him another heart— An expression explanatory, of that in the 6th verse, thou shalt be turned into another man: the meaning seems to be, that God inspired him with ideas fit for the rank and station in life which he was now to bear; with such a spirit as might qualify him for the government of God's people.
Related Commentaries of 1 Samuel 10:9
1 Samuel 10:9
9 And it was so, that when he had turned his backc to go from Samuel, God gave him another heart: and all those signs came to pass that day.