Kindness could be viewed as a bit of a lame affection — it lacks the sense of commitment and drive of love, the selflessness of mercy, or the staunchness of justice. Kindness effectively means to be benevolent, to be friendly.
Yet kindness is like a buffer and a glue in relationships. People are able to stick together when kindness is present between them and if tensions or difficulties arise, kindness softens the blows to reduce harm done.
When a child is kind it is beautiful. For an adult to be kind is essential. Consider any interaction between people: now imagine it with no kindness — it turns nasty and evil, doesn’t it?
Kind adults arise from kind children. So for the sake of society pray for your children to be kind.
Be kind to one another, tenderhearted, forgiving one another, as God in Christ forgave you.
(Ephesians 4:32 ESV)