God reveals Himself in His Word as a personal God who has a clearly defined character. He does not change and He always acts according to who He is. Like the 2 sides of a coin, His character is made up of 2 main aspects as is alluded to in Romans 11:22.
"Therefore consider the goodness and severity of God..."
God's goodness flows from His love and God's severity flows from His holiness. So let us say that heads is "love" and tails is "holiness".
The Bible tells us in 1 John 4:8 that "God is love". This is who He is, not something that He has. He does not possess love, He is pure love.