(Psalm 115:3)…..But our God is in heaven; He does whatever He pleases.
(Psalm 135:6)…..Whatever the Lord pleases He does, In heaven and in earth, In the seas and in all deep places.
Our God IS Sovereign! But in order to understand the sovereignty of God, we need to know what sovereignty means. Sovereign means one who exercises supreme authority, and has freedom from external control. One who is sovereign is above everything and can do as they please.
In the beginning there was only God. He was (is) Sovereign and could do as He pleased. He could have done, or said, anything. He could have created man or not created man. No one could, or did, force Him to say, or do, anything. Whatever He said and did He chose to say and do. Because God was never forced to say or do anything, He never said or did anything that was not His will. So anything God did not desire to happen, was simply never spoken by Him.
We have to learn to gain knowledge and wisdom. How is that different from our Sovereign God? God does not grow in knowledge and wisdom, He is (is the source of) knowledge and wisdom. Today we may wish we had made a different decision yesterday because we have gained new knowledge. But this never happens with God. He already knows everything. So whatever He has spoken, He will never have any reason to change His mind about.
No one forced God to say or do anything. By His own choice He freely gave His Word. After He had spoken He was no longer free to do just anything. Because unless He acted in line with His Word He would become a liar. He could still do anything He pleased, but if it was not in agreement with what He had already said, then He would become a liar, which is against His very nature.