Second Timothy 4:5 tells us to do the work of an evangelist which means every born again believer is to do the work of an evangelist. One of the jobs of an evangelist is to plant seed and that is simply preaching or sharing the Word of God with people. Any intelligent farmer knows that if he wants a wheat harvest he must plant wheat seed or if he wants a crop of corn he must plant corn seed. A smart farmer also knows that if you want a big crop you must plant a lot of seed and if you want a small crop you plant a little bit of seed. I know this sounds simple but yet how many ministers and Christians are praying and believing for a big harvest of souls to come into the Kingdom but yet they never plant any seed. If you want to see a big harvest of souls saved then go and witness to everyone around you. If you just want a little harvest of souls saved then go do just a little witnessing. The size of the crop always depends on the seed sower which is us.