Stony ground doesn't give you much to work with.
Up in the mountains of East TN, there are stone walls around home sites that resemble a modern fenced yard. It's a fence built from excavating the property of the stuff in the way of a garden or a crop. When I frequently rode my horses in the Great Smokey Mountains, I saw many of those stone walls. I'm sure it took great persistence, effort, and years to eradicate those stones from their property, but to get a harvest, that was the price that had to be paid.
In Mark chapter 4, at least 1/3 of the obstacles in the way of God's Word working in the hearts of men and women are 'stones'. Jesus speaking to the leaders of the organized religion of that day said in Mark 7:13,
Making the word of God of none effect through your tradition,,, so often I see church goers filled with religion, but not God's Word. They cuss just like the devil's children and act just like the devil's children, but say they are children of God.
Jesus said in Matthew 12:34, O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh. This verse tells us a person's words will reveal their heart...
1 Peter 1:23 Being born again, not of corruptible seed, but of incorruptible, by the word of God, which liveth and abideth for ever. The Word of God is the incorruptible seed that is to be planted in the hearts of men and women.
I challenge everyone to put the Word of God in their heart, It will change you from the inside out. He that hath ears to hear, let him hear.