He made a solemn vow, and confirmed it with an oath; which he undoubtedly did, although no mention be made of it 2Sa 7. Thus many historical passages which were omitted in their proper places, are afterwards recorded upon other occasions; of which examples have been formerly noted. Of Jacob; of Israel; Jacob and Israel are frequently put for their posterity; as hath been frequently observed.
Related Commentaries of Psalms 132:2
Psalms 132:2
2 How he sware unto the LORD, and vowed unto the mighty God of Jacob;