One perfect in knowledge is a descriptive phrase that some people read like a name of God. God is omniscient; He knows all things. He is able to act on that knowledge, bringing about justice and meeting the needs of His servants.
One perfect in knowledge in Hebrew:
Strong’s Concordance numbers: 8549, 1844
Bible references: Job 36:4; 37:16
For truly my words are not false;
One who is perfect in knowledge is with you. (Job 36:4)
A similar name of God is God of knowledge. He is also the Revealer of mysteries.