Believers in the Trinity: Why did the apostles refer to the resurrected, glorified Jesus as God's 'Servant'..?

Jesus said I and the Father are One and proved it with His resurrection. If you don't believe in that read THE CASE FOR JESUS RESURRECTION BY LEADING CHRISTIAN APOLOGIST FOR JESUS RESURRECTION GARY HABERMAS. when God became human in the form of Jesus He submit Himself to His own will. Because mometarily "He was made lower than the angels in Heaven." Jesus does say many things that seem contradictory and confusing at times but you can trust in Him because he proved His claims by His resurrection., read that book. Gary Habermas debated 3x with well respected and known aethist antony flew and after the3rd debate he became a Chrstian. good luck i'll be praying for you!!