The Prophet of our LORD, Hosea, is considered a Minor-Prophet by scholars; but He represented the LORD in a powerful way. The whole Book of Hosea is a "take-away" for those who desire to be in a Right-standing relationship with the Creator of all.
Hosea = Salvation, Deliverer. Through GOD, he had the power. He was a boots-on-the-ground leader. He brought understanding of the difference between a harlot, and a prostitute in real time. The Ten-Northern-Tribes were in serious trouble because of Idolatry: they worshipped thing-gods. The details there for all to see; sin upon sin!
One great big piece of information comes from Hosea 4:6. It covers why the people are destroyed, including children. Man-churches are only allowed to say the first sentence: "My people are destroyed for a lack of knowledge." They mislead people into believing that they, have the knowledge.
The "lack of Knowledge is of ME." They have rejected ME, and the LORD has rejected them. "Seeing thou has forgotten [Deut.32] the Law of thou GOD, I will also forget thou children." Is this new or out of character for our LORD ? No. The Ten Commandments covers Idol-worship: "the LORD is a jealous GOD, visiting the iniquity of the fathers upon the children, unto the third and fourth generation - of those that hate ME."
The House of Jacob was paling the harlot = unfaithful to the LORD, and constantly sought answers from things that were made with hands. The same situation is currently taking place in 2015. The "rejection" of our LORD, is expensive: too expensive!