1 Samuel 18:2
And Saul took him that day, and would let him go no more home to his father’s house.
Cross-reference
1 Samuel 16:21–23
Historical context
1 Samuel 16:21-23 describes David already serving Saul; here Saul formalizes keeping him permanently.
1 Samuel 17:15
Contrast
1 Samuel 17:15 shows David returning to shepherding; here Saul prevents that, keeping David with him.
1 Samuel 19:7
Historical context
1 Samuel 19:7 shows David returning to Saul's service after a conflict, echoing the earlier arrangement in 18:2.