I will ‘sow’ her for myself in the earth. I will love Lo-ruhamah (unloved) and I will say ‘You are my people’ to Lo-ammi (not my people), and they will say, ‘You are my God.’”
So my question is, “Didn't Israel know?” First of all Moses says, “I'll make you jealous by using people who aren't even a nation; I will make you angry by using ignorant foreigners!”
Now about “people who are not married,” I don't have a specific instruction from the Lord, so let me give you my opinion as someone who by the Lord's mercy is considered trustworthy.