A critical, judging, reputation-ruining gossip will reap this in their life many times over. If they do not repent and stop, the reaping will only increase in magnitude over time. This destroys lives, marriages, families, businesses, churches…
A complainer becomes (or reaps) what they complain about.
But, if you bless and send love, even when the person(s) has done nothing to deserve it, you also will reap blessing.
Instead of complaining, thank God for a person, a situation, a thing/object, being truly grateful, you will reap increase.
What you are thankful for before the Lord, increases to/in you.
When you are gracious and kind, open and loving with people, you will reap this in relationships.
This Law does not change.
Luke 6:37-38 “Judge not, and you will not be judged; condemn not, and you will not be condemned; forgive, and you will be forgiven; give, and it will be given to you. GOOD MEASURE PRESSED DOWN, SHAKEN TOGETHER, RUNNING OUT ALL OVER,* will be put into your lap. For with the measure you use it will be measured back to you.”
*This scripture has way too often been the “go to” offering talk scripture in church. Sad, because that is the least context. The much greater context is our heart attitudes about people.