If God created humans out of a need to fulfil something that he lacked, he would be dependent on humans to be complete and would therefore not be a big-enough God. To put it simply, if God created us because he was bored and in need of company, he would be a needy God who is dependent on us for relational fulfilment. But the Bible teaches us that God is eternally an intra-relational and Trinitarian being. This simply means that he has existed before humans; and that even way before he existed he was a fulfilled being who had relationship with the other members of the trinity (as seen in John 1:1, the word was with God, literally towards/in relation to). So, God never made us because he needed to; on the contrary, he made us as an expression of his pre-existent relational nature. He is relational; therefore as an expression of who he is he made us.
But how often do we think of ourselves as more important than we ought? How often do we think that God needs us and our worship? It is the deceit of our hearts that puffs our minds to think that God needs us and needs our worship. And we often wrongfully approach him in this way. He is independent and he exists outside of us and in spite of us.
This teaching is known by theologians as ‘Aseity’ a Latin word ‘a se’ meaning ‘from Himself’, defined by Wayne Grudem to mean “God does not need us or the rest of creation for anything, yet we and the rest of creation can glorify him and bring him joy”. So, on the one hand God does not need us but on the other hand we can bring him joy when we worship. He is a God who created everything and does not live in temples made by men, and he is not served by human hands, as if he needed anything, because he himself gives all men life and breath and everything else Acts 17:24-25. But he is a relational God who made us and who delights in our worship.
Therefore let us worship him appropriately; being humbled to know that we can offer him nothing that he himself has not created. But that he himself has created everything and through Jesus has made a way for us to have a relationship with him. We should ever be grateful to him for that. We should call on him for salvation and worship him with thanksgiving.
Psalm 50: 7-15