en_tn/1ch/29/21.md

they made sacrifices to Yahweh and offered burnt offerings to him

The people offered animals to be sacrificed to Yahweh by the priests. Most of the people did not actually kill and sacrifice the animals themselves. (See: rc://en/ta/man/translate/figs-metonymy)

a thousand bulls, a thousand rams, and a thousand lambs

"1,000 bulls, 1,000 rams, and 1,000 lambs" (See: rc://en/ta/man/translate/translate-numbers)