'Illegitimate' in the Bible

And Aaron's sons Nadab and Abihu each took his censer, and they put fire in them and placed incense on it; then they presented {before} Yahweh illegitimate fire, which he had not commanded them.

No one of illegitimate birth may enter the Lord’s assembly; none of his descendants, even to the tenth generation, may enter the Lord’s assembly.

When the Lord first spoke through Hosea, he said to him, "Go marry a prostitute who will bear illegitimate children conceived through prostitution, because the nation continually commits spiritual prostitution by turning away from the Lord."

They betrayed the Lord;indeed, they gave birth to illegitimate children.Now the New Moon will devour themalong with their fields.