Let the men of his place help him - i. e., “Let the pagan population help him” (see Ezra 1:6).
The freewill offering - Probably that made by Cyrus himself Ezra 1:7-11.
Related Commentaries of Ezra 1:4
Ezra 1:4
4 And whosoever remaineth in any place where he sojourneth, let the men of his place helpa him with silver, and with gold, and with goods, and with beasts, beside the freewill offering for the house of God that is in Jerusalem.