3:1-6 The length of this war tried the faith and patience of David, and made his settlement at last the more welcome. The contest between grace and corruption in the hearts of believers, may fitly be compared to this warfare. There is a long war between them, the flesh lusting against the spirit, and the spirit against the flesh; but as the work of holiness is carried on, corruption, like the house of Saul, grows weaker and weaker; while grace, like the house of David, grows stronger and stronger.

2Sa 3:6-12. Abner Revolts to David.

6-11. Abner made himself strong for the house of Saul—In the East, the wives and concubines of a king are the property of his successor to this extent, that for a private person to aspire to marry one of them would be considered a virtual advance of pretensions to the crown (see 1Ki 2:17). It is not clear whether the accusation against Abner was well or ill founded. But he resented the charge as an indignity, and, impelled by revenge, determined to transfer all the weight of his influence to the opposite party. He evidently set a full value on his services, and seems to have lorded it over his weak nephew in a haughty, overbearing manner.