They sacrificed sacrifices unto the Lord Before the ark which was there. In abundance for all Israel Either, 1st, On behalf of all Israel, to praise God in their names, to procure God's presence and blessing for them all. Or, 2d, So many sacrifices, that the feasts which were, according to custom, made of the remainders of them, were abundantly sufficient for all the Israelites that were then present, and desired to partake of them.
Related Commentaries of 1 Chronicles 29:21
1 Chronicles 29:21
21 And they sacrificed sacrifices unto the LORD, and offered burnt offerings unto the LORD, on the morrow after that day, even a thousand bullocks, a thousand rams, and a thousand lambs, with their drink offerings, and sacrifices in abundance for all Israel: