What does Hosea 2:4 mean?

“Say to your brothers, ‘My people!’ and to your sisters, ‘My loved one!’

Contend with your mother! Contend, for she is not my wife, neither am I her husband; and let her put away her prostitution from her face, and her adulteries from between her breasts;

Lest I strip her naked, and make her bare as in the day that she was born, and make her like a wilderness, and set her like a dry land, and kill her with thirst.

For their mother has played the prostitute. She who conceived them has done shamefully; for she said, ‘I will go after my lovers, who give me my bread and my water, my wool and my flax, my oil and my drink.’

Therefore behold, I will hedge up your way with thorns, and I will build a wall against her, that she can’t find her way.

She will follow after her lovers, but she won’t overtake them; and she will seek them, but won’t find them. Then she will say, ‘I will go and return to my first husband; for then was it better with me than now.’