The first rain (after sowing), the latter rain (just before harvest). In the ninth month and the first month respectively. (See Ezra 10:9; Ezra 10:13, and Joel 2:23.)
That thou mayest gather in. — Literally, and thou shalt gather in. Rashi reminds us that this may mean “thou, and not thine enemies.” “They that have gathered it shall eat it” (Isaiah 62:8-9).