God’s perfection refers to the absolute and complete nature of His being, attributes, and actions. It means that He lacks nothing in goodness, wisdom, power, justice, and love. His nature is free from any flaw, error, or deficiency. This perfection extends to all His actions and plans, which are always in alignment with His perfect will, purpose, and character.
This God—his way is perfect; the word of the Lord proves true; he is a shield for all those who take refuge in him. (Psalm 18:30)