For as the rain comes down, and the snow from heaven, And do not return there, But water the earth, And make it bring forth and bud, That it may give seed to the sower And bread to the eater, 11 So shall My word be that goes forth from My mouth; It shall not return to Me void, But it shall accomplish what I please, And it shall prosper in the thing for which I sent it. Isaiah 55:10-11 NKJV 

God’s Word will not return to Him void. He accomplishes its intent by a miraculous and mysterious process apart from man’s know-how and skill. The Word works in the “soil” of human hearts producing fruit. Man plants and waters but God gives the increase (1 Cor. 3:6).

When the seed (the Word of God) is scattered in the “soil” of the heart of an honest and good hearted hearer, if they hold it and keep the seed in their heart, it will bring forth an harvest with patience (Lk. 8:15). The seed grows secretly (Mk. 4:27-28). This is a mystery of the Kingdom of God, i.e., the mystery of the “in-between” which is only made known to those in the Kingdom (Mk. 4:11-12).  The Lord is Lord of the harvest. He is also Alpha and Omega (Rev. 1:11).  After perceiving and understanding God at Alpha, you want to live by faith in Omega, i.e., that which is manifested because the soil produces fruit by itself (Mk. 4:28).

Notwithstanding, the mystery of the seed sown into the soil and its growth, there are still basic laws of the harvest: (1) you get what you sow (Gal. 6:7-8); (2) you get more than you sow (Lk. 6:38); (3) there’s always a period of time between sowing and reaping (Gen. 8:22); and, (4) praise, worship, celebration and a joyous disposition speeds up the manifestation of the harvest (Ps. 37:4).