Be not deceived; God is not mocked: for whatsoever a man soweth, that shall he also reap. Gal. 6:7
I am not to be fooled because whatever I sow, which means that I do or say, that word or deed will I also reap. If I sow good things, like loving my neighbor or being a servant I will reap, meaning that good things will come from it. If I am gossiping I will reap from that and be caught speaking of others, if I steal or lie, I will suffer the consequences. That is what reaping is, the consequences of words or actions. When we plant we reap whatever we plant, if we plant seeds of faith, by speaking the Word of God, and believing what it says, then we will harvest what we speak. Others also benefit or not from what are words and actions are.