There is one God, who has revealed Himself as our Father, in His Son Jesus Christ, and as the Holy Spirit. Jesus Christ is God manifested in flesh. He is both God and man (See Deuteronomy 6:4; Ephesians 4:4-6; Colossians 2:9; I Timothy 3:16).
Everyone has sinned and needs salvation. Salvation comes by grace through faith based on the atoning sacrifice of Jesus Christ (See Romans 3:23-25; 6:23; Ephesians 2:8-9).
The saving gospel is the good news that Jesus died for our sins, was buried, and rose again. We obey the gospel (II Thessalonians 1:8; I Peter 4:17) by repentance (death to sin), water baptism in the name of Jesus Christ (burial), and the baptism of the Holy Spirit with the initial sign of speaking in tongues as the Spirit gives the utterance (resurrection) (See I Corinthians 15:1-4; Acts 2:4, 37-39; Romans 6:3-4).
As Christians we are to love God and others. We should live a holy life inwardly and outwardly, and worship God joyfully. The supernatural gifts of the Spirit, including healing, are for the church today (See Mark 12:28-31; II Corinthians 7:1; Hebrews 12:14; I Corinthians 12:8-10).
Jesus Christ is coming again to catch away His church. In the end will be the final resurrection and the final judgment. The righteous will inherit eternal life, and the unrighteous eternal death (See I Thessalonians 4:16-17; Revelation 20:11-15).