God is love without passions

The expression: "God is love without passion" of Thomas Aquinas has a similarity with the biblical passage: "There is no fear in love. But perfect love drives out fear, because fear has to do with punishment" 1 John 4:18.
Talk about punishment is talk about sin, is to talk about to go against the law.
We cannot attribute passions to God because passions have their own will. A will for reason and a will for passion, God is not divisible.
Tomas Aquinas explains that the expression, the wrath of god in the old testament is a meta metaphor.
We can only attribute perfections to God, this perfections are called gifts.
http://www.quintoevangelio.com.ar/en/articles/item/66-god-and-the-nature-of-love.html

Spiritual Gift of Fear of the Lord

"What does the Lord your God ask of  you but to fear the Lord your God, to walk in obedience to him, to love him, to serve the lord your God with all your heart and with all your soul" Deuteronomy 10:12
The fear of the Lord or Serenity is define as constancy, firmness, devotion, ecuanimity, stability.
This text of the Bible is related with: "The fear of Jehovah is the beginning of the wisdom" Proverbs 1:7
The Parable of the Sower (Matthew 13, Mark 4) teaches us that the wisdom of God  bear fruits through the constancy, the firmness.
The Spiritual Gift of Serenity  means firmness and constancy in the search of the excellence, "Be perfect as your heavenly Father is perfect" Matthew 5:48
The Serenity is the base of the ethical behavior or to say we must have constancy, firmness in the search of the eternal life.
This spiritual gift is more important than Mercy, and is directly related with the Security or Confidence in God.
http://www.quintoevangelio.com.ar/en/articles/item/223-fear-of-the-lord.html