Like unkept lawn, our hearts just keep producing weeds

Older and wiser pastors used to say to me, “Nothing surprises me anymore when it comes to human sin.”
I always thought that was a defeatist view, but it’s not, it’s just realistic. Sin is, by nature, deceitful. It is, in itself, appealing lies, that speak directly to our hearts in a way that advertisers would pay millions to be able to do.
The person who stops tending his heart, who stops rending his heart and weeding his heart and sewing God’s word in his heart… That man will grow weeds in his heart.
We don’t do Christian things because some law says to, we do Christian things because they are God’s gifts to help us keep weeding our hearts.