The God of the Bible is perfect. The Bible speaks of God's nature as being perfect as well as his ways as perfect.

God Has an Absolutely Perfect Nature

Jesus said.

Be perfect, therefore, as your heavenly Father is perfect (Mat 5:48).

His Ways Are Always Perfect

God's ways are also perfect.

As for God, his way is perfect; the word of the LORD is flawless. He is a shield for all who take refuge in him (Psa 18:30).

There Is Nothing Lacking in Him

God is absolute perfection in His character and in His ways—there is nothing lacking in Him. Human beings, on the other hand, are imperfect in their makeup and behavior.

Because God is perfect in everything there is nothing lacking in His character—there is no attribute that He needs. He has everything necessary.

Summary

The perfection of God speaks of His character and His ways. God is perfect in both of these realms. This being the case there is nothing lacking in His character—there are no missing attributes.