“The Holy Scriptures demonstrate that Christ is God in many ways. We may summarize the lines of evidence for the deity of Jesus Christ as follows.
1. The preexistence of deity: indications that Christ was living and active before his entrance into this world as a human being (John 1:1; Phil. 2:6-7; 1 Tim. 1:15; Heb. 1:1-4; John 11:25; Rev. 22:13).
2. The prophecies of deity: promises of God’s coming to his people fulfilled in Jesus, particularly promises that God would come as the divine Messiah (Isa. 40:3, 5, 9–10; Mal. 3:1–6; Psalm 45:6–7; 110:1; Isa. 9:6; Mic. 5:2).
3. The names of deity: the names and titles given to Christ, such as God (John 1:1), the Son of God (Matt. 16:16), Lord (Phil. 2:11), Lord of lords (Rev. 17:14), and God with us (Matt. 1:23).
4. The attributes of deity: traits such as holiness (Acts 3:14), eternity (John 8:58), sovereign power (Matt. 8:26), infinite knowledge (John 16:30), omnipresence (Matt. 28:20), self-existence (John 5:26), and immutability (Heb. 1:10–12). When we examine these divine attributes of Christ, we are led to confess with Paul, “In him dwelleth all the fulness of the Godhead bodily” (Col. 2:9). Wellum comments, “The entire fullness and sum total of deity inhabits the Son, who has added to Himself a human nature.”
5. The relations of deity: Christ is the only begotten Son of the Father (John 3:16), and the Holy Spirit is the Spirit of the Son (Gal. 4:6). In the relations of the Trinity, Christ shares in the fullness of the divine life and activity with the Father and the Spirit.
6. The actions of deity: Christ does what only God does as Creator, Lord, and Redeemer (Col. 1:16; 1 Cor. 8:6; John 5:19; Col. 1:17; Heb. 1:3; Mark 2:5-10; John 5:24-25).
7. The honors of deity: Christ hears prayer and receives worship (John 5:23; Matt. 2:1-12; Heb. 1:6; Rev. 5:9-12).
In summary, since the Bible reveals Christ’s activity long before He became a man; foretells the coming of Christ as the coming of God; calls Him by the names of God; ascribes to Him the attributes, relations, and actions of God; and gives Him the honors of God, then Christ is God.”
–Joel R. Beeke and Paul M. Smalley, Reformed Systematic Theology, Volume 2: Man and Christ (Wheaton, IL: Crossway, 2020), 2: 762–763.