Galatians 6:6-8

6 Let him who receives instruction in the Word [of God] share all good things with his teacher [contributing to his support].

7 Do not be deceived and deluded and misled; God will not allow Himself to be sneered at (scorned, disdained, or mocked by mere pretensions or professions, or by His precepts being set aside.) [He inevitably deludes himself who attempts to delude God.] For whatever a man sows, that and that only is what he will reap.

What is so great about these verses is that our Father will cause us to sow exactly what we need to reap. We are His body and His flesh, Ephesians 5:30-32, so our Father is using us to sow what He needs to reap! I have heard this verse preached my whole life. The sermons however usually placed all of the responsibility on us and not on Jesus where it belongs. The Truth is that Jesus will lead us into the paths of righteousness for His Name’s Sake, Psalm 23:3. The Truth is that our Father provides our seed to be sown, 2 Corinthians 9:10. We can do nothing without Jesus first empowering us to do it, John 15:5. The clay cannot form itself. The branch cannot bear fruit by itself. The body cannot function without the head first directing it. Neither can we sow anything without our Father being the One Who provides it, directs it, and accomplishes it. 

We are assured and know that [God being a partner in their labor] all things work together and are [fitting into a plan] for good to and for those who love God and are called according to [His] design and purpose. Romans 8:28

8 For he who sows to his own flesh (lower nature, sensuality) will from the flesh reap decay and ruin and destruction, but he who sows to the Spirit will from the Spirit reap eternal life.

If we had to sow things on our own we would fail. If we would somehow first do it, then we would boast about how we did, and if we didn’t, then we would condemn ourselves and others for failing. This is why our Father gave us His Holy Spirit and He will not allow us to see decay. 

And He will establish you to the end [keep you steadfast, give you strength, and guarantee your vindication; He will be your warrant against all accusation or indictment so that you will be] guiltless and irreproachable in the day of our Lord Jesus Christ (the Messiah). 1 Corinthians 1:8

And I am convinced and sure of this very thing, that He Who began a good work in you will continue until the day of Jesus Christ [right up to the time of His return], developing [that good work] and perfecting and bringing it to full completion in you. Philippians 1:6