Ruth 2:8 Then Boaz said to Ruth, “You will listen, my daughter, will you not? Do not go to glean in another field, nor go from here, but stay close by my young women.
Yes, God is a jealous God. Because He will not share His praise with another: "I am the LORD; that is my name; my glory I give to no other, nor my praise to carved idols" (Isaiah 42:8). God carefully maintains and protects what is rightly His.