Answers

I. Aside from a prophet, who was Hosea?

Aside from being a prophet, Hosea was a man of the Northern Kingdom of Israel and he was an Ephraimite

II. Why did God need to send Israel a prophet?

God saw that Israel needed a prophet because Israel became a faithless nation.

III. How was Hosea's marriage to Gomer used in God's message?

Hosea's marriage to Gomer was used as a symbol of the unfaithful Israel since Gomer was a harlot and adulteress.

IV. In the book of Hosea, what tradition was started that involved marriage?

With the Book of Hosea, the tradition that is started is the practice of comparing the relationship of Yahweh and Israel with that of a marriage.