Saul said to him, “May you be blessed, David my son. You will accomplish great things and will surely prevail.” So David went on his way, and Saul returned home.
KJV
Then Saul said to David, Blessed [be] thou, my son David: thou shalt both do great [things], and also shalt still prevail. So David went on his way, and Saul returned to his place.
ASV
Then Saul said to David, Blessed be thou, my son David: thou shalt both do mightily, and shalt surely prevail. So David went his way, and Saul returned to his place.