The Website owner believes in only one true and real/genuine God: Jesus. And Oneness is "An Appreciation of God’s Identity."
The beautiful message of Scripture is that our Creator became our Savior. The God against whom we sinned is the One who forgives us. God loved us so much that He came in flesh to save us. He gave of Himself; He did not send someone else. Moreover, our Creator-Savior is also the indwelling Spirit who is ever-present to help us. God told us how to live and then came to live among us. He showed us how to live in the flesh and laid down His human life to purchase our salvation. Now He abides within us and enables us to live according to His will. Jesus Christ is the one God incarnate, and in Him we have everything we need: healing, deliverance, victory, and salvation (Colossians 2:9-10). By recognizing the almighty God in Jesus Christ, we restore correct biblical belief and experience apostolic power. (From: upci.org - about-oneness-pentecostalism)