To offer burnt-offerings, and the other sacrifices which were to be offered with them upon that day, being the feast of trumpets, Numbers 29:1, &c. Burnt-offerings are oft put for all sacrifices, as hath been observed once and again. The foundation of the temple was not yet laid; though it is probable they had done something towards the removing of the rubbish, and preparing the way for it.
Related Commentaries of Ezra 3:6
Ezra 3:6
6 From the first day of the seventh month began they to offer burnt offerings unto the LORD. But the foundationc of the temple of the LORD was not yet laid.