Do you believe in Karma? Do you know what it is? I bet you don't. Most people think that karma is kind of a judgment against people who do something bad. Kind of like payback. Kind of a cause-effect relationship for how we live our lives. That is NOT what karma is.
Karma is a Hindu / Buddhist belief that says if we live our current lives good enough, our next life will be better. The converse is also true for those who believe in "bad" karma. If we live our present lives badly we will come back in our next life in a worse condition.
Karma's main tenant is reincarnation. If you walk down the street and ask "Do you believe in karma?" many people will answer "yes." Ask the same people if they are Hindu's or Buddhists and most of those same people will answer "no."
The present day definition of karma has changed from what it used to be, all predicated on an incorrect belief about what it actually is.
Many Christians believe in the newer definition of karma, which begs the question, are they really Christians? Karma clashes with the teachings of Jesus. Although there are verses talking about "sowing and reaping," Christianity is based on faith, not works, not on the things we do.
So why do people believe that karma will get someone? They talk as if karma it a thing or a person or some sort of moral police force to keep everyone in line by punishing bad behavior and rewarding good. Isn't that what Christianity teaches? No!
The Gospel that Jesus preached tells us that we are ALL inherently bad.
“None is righteous, no, not one;" - Romans 3:10
With none of us good enough to get into heaven and there is no amount of good karma that's going to get us there, what's the point? The whole point, my friends, is Jesus!
Through faith in Christ we no longer have to worry about being "good enough." We don't have to concern ourselves with someone getting what they deserve. If that were the case, and you and I got what WE deserve? Yeah. Thank God for His precious gift of salvation. We can attain His promise of eternal life, not reincarnation, simply by believing Jesus was who He said He was, the Song of God, and that His sacrifice on the cross atoned for our sins, making us pure and holy in God's eyes, through that faith.
"6 Let the one who is taught the word share all good things with the one who teaches. 7 Do not be deceived: God is not mocked, for whatever one sows, that will he also reap. 8 For the one who sows to his own flesh will from the flesh reap corruption, but the one who sows to the Spirit will from the Spirit reap eternal life. 9 And let us not grow weary of doing good, for in due season we will reap, if we do not give up. 10 So then, as we have opportunity, let us do good to everyone, and especially to those who are of the household of faith." - Galatians 6:6-10
What Does The Bible Say About Karma? - GotQuestions.org