Charles H. Spurgeon on Psalms 96:7

Ye kindreds of the people. He calls upon them to come in kindreds or families, in allusion to the Jewish custom of families coming by themselves, on the several festival days to worship in Jerusalem; and the Holy Ghost gives us here to understand that such custom was to serve as a model for Christians, whose families should unite in coming to the church to give glory and honour to God for all the wonderful things he accomplished in the redemption of man; for it was not by our own industry, or by our merits, that we have come to grace, and to be the adopted children of God, but through God's mercy, to whom, therefore, is due all honour and glory. Bellarmine.