When people are confronted by the goodness of God, it brings them to a place of repentance and a crying out for mercy because they now feel they can trust God. They understand that He is only interested in their well being, not their punishment. The world tries to overcome its enemies by destroying them. The book of Ephesians tells us that we were once God's enemies but He was good to us and sacrificed the Lamb of God for our sins. Because of this, we have responded to His goodness and His gracious offer of redemption.
Gentleness generates a non-threatening atmosphere of acceptance.
This makes it easy for people to open their hearts. When opened they can share from their hearts and see their own emptiness apart from the Lord. His gentleness is in us and we can create an atmosphere for people to have their hearts healed and for unbelievers to come to Jesus. For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them. This is a precious promise for walking in His goodness.