For he that sows to his flesh shall of the flesh reap corruption; but he that sows to the Spirit shall of the Spirit reap life everlasting.
All Commentaries on Galatians 6:8 Go To Galatians 6
Augustine of Hippo
AD 430
To sow in the spirit is to serve righteousness from faith and with love and not to heed the desires of sin, even though they arise from mortal flesh…. When we are under grace, we sow in tears, when desires arise from our animal body, which we resist by not consenting, so that we may reap in joy. We reap when, by the reformation of our body, no vexation or peril of temptation comes to trouble us from any physical source.