“But you have been purified from sin; (but) you have been dedicated to God, (but) you have been put right with God by the Lord Jesus Christ and by the Spirit of our God”. 

1 Cor 6:11 GNB 

Religious movements that do not believe in the full divinity of Jesus Christ, and therefore deny the doctrine of the trinity, often point out that the doctrine of the trinity isn’t found in the New Testament. 
It was, however believed. In this verse Paul talks to the believers in Corinth about what God did in them and for them when they became Christians, and all three persons in the godhead were involved in the work of grace that took place. God the Father is the person to whom they relate, either negatively or positively. Before their conversion they went their own way, ignored God, worshipped idols – most likely the goddess Aphrodite, the goddess of love (=sex). Now they are in a right relationship with God. At the time of their conversion they were baptized into Christ the Son, the baptism symbolizing their being forgiven, washed and purified by Christ. Having been purified they then received the Holy Spirit who worked in them to bring sanctification, holiness and new life. The three persons of the trinity were all at work in them, all achieving the same end – to bring them to fullness of life in Jesus Christ. (We have put the “but” in three times as it is like this in the Greek New Testament). 
It is the three-fold God who works in you as well. The three persons don’t work separately. They are all at work together in all the operations of God for you and in you. Praise God! 

Lord, thank you for being so totally engaged in my salvation.