The Bible says God cannot change, but Jesus did. How can he be God if he doesn't have essential attributes of God like omniscience?

Before addressing the question, it's important to clarify that when the Bible states God cannot change, it refers to His essence and attributes, not His actions or interactions with creation. God is a Dynamic Being who engages with His creation. The Scriptures affirm that Jesus is God's eternal Word who became flesh, fully retaining His divine nature while adding humanity. Therefore, Jesus did not lose any divine attributes during His incarnation. After His resurrection, His human nature became glorified and perfect, ceasing to experience change. Thus, while Jesus displayed human limitations, such as not knowing the day or hour of His return, He remains immutable in His divine nature, as evidenced by verses like Hebrews 1:8 and Hebrews 13:8, which affirm His eternal nature and unchanging character.