As to what I believe: One God. One morality for all humankind. That God's principle demand on us is that we treat each other decently. And that our deed is ultimately more important than our creed.
Isa 43:7 [Even] every one that is called by my name: for I have created him for my glory, I have formed him; yea, I have made him. Isa 43:8 Bring forth the blind people that have eyes, and the deaf that have ears.
Isa 43:9 Let all the nations be gathered together, and let the people be assembled: who among them can declare this, and shew us former things? let them bring forth their witnesses, that they may be justified: or let them hear, and say, [It is] truth.
Isa 43:10 Ye [are] my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I [am] he: before me there was no God formed, neither shall there be after me
Isa 43:11 I, [even] I, [am] the LORD; and beside me [there is] no saviour.
Isa 43:12 I have declared, and have saved, and I have shewed, when [there was] no strange [god] among you: therefore ye [are] my witnesses, saith the LORD, that I [am] God.
Isa 43:13 Yea, before the day [was] I [am] he; and [there is] none that can deliver out of my hand: I will work, and who shall let it?
Isa 62:2 And the Gentiles shall see thy righteousness, and all kings thy glory: and thou shalt be called by a new name, which the mouth of the LORD shall name
Psa 46:10 Be still, and know that I [am] God I will be exalted among the heathen, I will be exalted in the earth.
Psa 83:18 That [men] may know that thou, whose name alone [is] JEHOVAH, [art] the most high over all the earth
I could go on and on. The Hebrew bible states clearly Gods purpose in creation. It was for His Glory
The purpose of man is to glorify God and enjoy Him forever.
We are to love men because they are made in the likeness of God, But that does not diminish our responsibility to have correct doctrine. Look at all the heathen nations God ordered destroyed.