2 Sam 10:2

10:2 I will deal loyally with Hanun the son of Nahash. The Hebrew phrase translated “deal loyally” suggests that there was a covenant between David and Nahash, even though Nahash’s aggression towards Israel had helped Saul rise to power (1 Sam. 11:1–11; 12:12). The friendly relationship between David and Nahash may have been established during the period when David was a fugitive from Saul.