Verses with the word fellowship in the Old Testament (2 verses):

Leviticus 6:2
If a soul sin, and commit a trespass against the LORD, and lie unto his neighbour in that which was delivered him to keep, or in fellowship, or in a thing taken away by violence, or hath deceived his neighbour;

Psalms 94:20
Shall the throne of iniquity have fellowship with thee, which frameth mischief by a law?