נתן nathan "give, put, place" a very common verb, used 4 times in Amos.

Twice it refers to things Adonai has "given" his people Israel: 9:15 the land, but at 4:6 (because of their infidelity) clean teeth (= famine).

The other two passages use a rarer construction "give his voice" meaning to make a loud noise: once of a lion 3:4 and once of Adonai 1:2.