“The Word [Jesus] was God” and “the Word became flesh” (
John 1:1,
14). This verse clearly indicate that Jesus is God in the flesh. One of many Bible verses.
The names of God are often applied to Jesus. He is called "the Mighty God, the Everlasting Father" and "Immanuel" (meaning "God with us"). Elsewhere Jesus is called "The Lord (Jehovah) our Righteousness," "God" and "Son of God."
Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.
1 John 4:15
Your proof text proves the Trinity because God the holy spirit is who dwells in the believer.
The indwelling of the Holy Spirit is the action by which God takes up permanent residence in the body of a believer in Jesus Christ. In the Old Testament, the Spirit would come and go from the saints, empowering them for service but not necessarily remaining with them (see
Judges 15:14;
1 Chronicles 12:18;
Psalm 51:11;
Ezekiel 11:5). Jesus revealed to His disciples the new role the Spirit of Truth would play in their lives: “He lives with you and will be in you” (
John 14:17). The apostle Paul wrote, “Do you not know that your bodies are temples of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price. Therefore honor God with your bodies” (
1 Corinthians 6:19–20).
These verses are telling us that the believer in Jesus Christ has the third Person of the Trinity, the Holy Spirit, living in him. When an individual accepts Christ as personal Savior, the Holy Spirit gives the believer the life of God, eternal life, which is really His very nature (
Titus 3:5;
2 Peter 1:4), and the Holy Spirit comes to live within him spiritually. The fact that the believer’s body is likened to a temple where the Holy Spirit lives helps us understand what the indwelling of the Holy Spirit is all about. The word temple is used to describe the Holy of Holies, the inner sanctum in the Old Testament tabernacle structure. There, God’s presence would appear in a cloud and meet the high priest, who came once a year into the Holy of Holies. On the Day of Atonement, the high priest brought the blood of a slain animal and sprinkled it on the mercy seat of the Ark of the Covenant. On this special day, God granted forgiveness to the priest and His people.
Today, there is no Jewish temple in Jerusalem, and the animal sacrifices have ceased. The believer in Christ has become the inner sanctum of God the Holy Spirit, as the believer has been sanctified and forgiven by the blood of Jesus Christ (
Ephesians 1:7). The believer in Christ becomes the habitation of the Holy Spirit of God. In fact, Scripture also says that the believer is indwelt spiritually by Christ (
Colossians 1:27) and by God the Father (
1 John 4:15)—the Trinity is involved.
As the Holy Spirit lives in the believer, He brings about some life-changing results:
1) The indwelling Spirit comes to a soul dead in sin and creates new life (
Titus 3:5). This is the new birth Jesus spoke of in
John 3:1–8.
2) The indwelling Spirit confirms to the believer that he belongs to the Lord and is an heir of God and fellow-heir with Christ (
Romans 8:15–17).
3) The indwelling Spirit installs the new believer as a member of Christ’s universal church. This is the baptism of the Spirit, according to
1 Corinthians 12:13.
4) The indwelling Spirit gives spiritual gifts (God-given abilities for service) to the believer to edify the church and serve the Lord effectively for His glory (
1 Corinthians 12:11).
5) The indwelling Spirit helps the believer understand and apply the Scripture to his daily life (
1 Corinthians 2:12).
6) The indwelling Spirit enriches the believer’s prayer life and intercedes for him in prayer (
Romans 8:26–27).
7) The indwelling Holy Spirit empowers the yielded believer to live for Christ to do His will (
Galatians 5:16). The Spirit leads the believer in paths of righteousness (
Romans 8:14).
8) The indwelling Spirit gives evidence of new life by producing the fruit of the Spirit in the believer’s life (
Galatians 5:22–23).
9) The indwelling Spirit is grieved when the believer sins (
Ephesians 4:30), and He convicts the believer to confess his sin to the Lord so that fellowship is restored (
1 John 1:9).
10) The indwelling Spirit seals the believer unto the day of redemption so that the believer’s arrival in the Lord’s presence is guaranteed after this life (
Ephesians 1:13–14).
When you accept Christ as your Savior (
Romans 10:9–13), the Holy Spirit takes up residence in your heart, bringing with Him an entirely new life of love, relationship, and service to the Lord.
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