Who gave his son?

If Jesus was not actually God's Son, then what sacrifice did the Father make? Whom did He give? Another God? A friend? A colleague? This does not demonstrate love on the Father's part, but rather selfishness, in sending another, rather than coming Himself! Yet the whole point of John 3:16 is the love of God (the Father)."God so loved the world ..." If we embrace the idea of three Gods in one, or one God in three (the trinity), then which one are we talking about here? All three? Or only the Father? "God so loved ... that He gave His ... Son..." Did the Father give His Son? Did the Holy Spirit give His Son? Did the Son give His Son? These questions are ridiculous, and yet, they need to be asked in order that we may clearly see what the text is saying. God is the Father. It is He who gave His Son. It is He who had a Son to give. The Son is not the God who gave His Son, neither is the Holy Spirit that God. The focus of this text is the love of God; but we must understand that this refers specifically to the Father. It is His love which is being emphasized here. It is He who is God. (1 Cor. 8:6)