There are many qualities of Jehovah God that we can mention. Basically, Jehovah is the Almighty spirit God (Psalms 83:18) being living in a dimension called "Heaven".
He is superior to Jesus Christ being his "begotten Son". John 3:16
Also, some of his main qualities are as follows:
1. Jehovah is Love. 1 John 4:8
2. Jehovah is the creator and the designer. Gen 1:1
3. Jehovah is Holy. Isaiah 6:3
4. Jehovah is the supreme Justice. Romans 12:19.