NET
25 Saul replied to David, “May you be rewarded, my son David! You will without question be successful!” So David went on his way, and Saul returned to his place.
Darby
25 And Saul said to David, Blessed be thou, my son David: thou shalt certainly do [great things], and shalt certainly prevail. And David went on his way, and Saul returned to his place.
KJV
25 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.