God of bible can't be most justful because he punished a man who commits adultery by raping that man's wives in public.
2 Samuel 12:11: This is what the Lord says: ‘Out of your own household I am going to bring calamity on you. Before your very eyes I will take your wives and give them to one who is close to you, and he will sleep with your wives in broad daylight. 12 You did it in secret, but I will do this thing in broad daylight before all Israel.
Context: David had an adultery relationship & This is what the lord says to him.
2 Samuel 16:22: So they pitched a tent for Absalom on the roof, and he slept with his father’s concubines in the sight of all Israel.
Context: Absalom is the son of david.
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P1: Punishing a man who commits adultery by raping that man's wives in public is NOT justful.
P2: God punished a man who commits adultery by raping that man's wives in public.
Conclusion: God of the bible is NOT perfectly justful.