This psalm is very similar to the preceding.1 David, who probably was the author of it, being chased and driven out of his country by the unjust violence and tyranny of his enemies, calls upon God for vengeance, and encourages himself to hope for restoration.
1 This and the preceding psalm have been considered by the greater number of critics as having originally formed only one psalm, and they make but one in forty-six MSS. The similarity of the style, sentiment, and metrical structure, and the occurrence of the intercalary verse at verses 5th and 10th of Psalm 42, and verse 5th of Psalm 43, confirm this opinion. "The fact, indeed," says Williams, "is self evident, and easily accounted for. The Jewish choristers having, on some occasion, found the anthem too long, have divided it for their own conveniency, (no uncommon thing among choristers,) and, being once divided, it was ignorantly supposed it ought to be so divided."