Mar 2:8 And immediately when Jesus perceived in his spirit that they so reasoned within themselves, he said unto them, Why reason ye these things in your hearts?
In my last post I cited Mark 2:1-12 to show that our Lord Jesus Christ is rightly understood to be God the Son because He had the power to forgive sins. The Jews rightly asked within themselves, “Who can forgive sins but God only?”
That Jesus knew that they harbored these thoughts in their minds demonstrates His omniscience. Omniscience is an attribute of God that means God knows everything, even the hidden thoughts of our hearts or minds.
Peter directly states to Jesus that he knew that Jesus knows everything:
John 21:17 He saith unto him the third time, Simon, son of Jonas, lovest thou me? Peter was grieved because he said unto him the third time, Lovest thou me? And he said unto him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith unto him, Feed my sheep.
Because Jesus knows all things, we can properly say that Jesus is omniscient.
Omniscience is known as an incommunicable attribute of God. An incommunicable attribute of God belongs to God only, and cannot be shared with any other person or creature. This proves the Deity of Christ, because He possesses the incommunicable attributes of God such as (1) eternity, Revelation 22:13; (2) omniscience, John 21:17; (3) omnipresence, Ephesians 1:23; (4) sovereignty, Matthew 8:27; (5) immutability, Hebrews 13:8; and (6) immensity, John 3:13.
Since only God can possess the incommunicable attributes, yet Scripture ascribes them to Jesus and to the Holy Spirit, all three persons must be God. There is no other explanation which properly agrees with all the statements of Scripture.