Now some seeds fell ongood soil—the fertile soil. The one thing that makes it good soil is its productivity. It is good soil because it is productive soil.
In v. 8, Jesus says that the good soil produced grain. Some produced a hundredfold grain, some sixty, some thirty. In v. 23, Jesus says that the good soil is the producing heart.
“As for what was sown on good soil, this is the one who hears the word and understands it. He indeed bears fruit and yields, in one case a hundredfold, in another sixty, and in another thirty” (Matt. 13:23). The fertile soil refers to one who hears the word and understands it. The word takes root in his heart. It grows in his life. His faith grows in the word of the kingdom. His life bears the fruit of the kingdom.
But the producing heart cannot produce without endurance. Productive faith cannot produce without persevering faith. The fertile soil is, therefore, the persevering heart.
The persevering heart symbolizes people who hear the word of the kingdom and understand it. They follow Christ despite tribulation and persecution. They follow Christ wholeheartedly, in the depths of their being.
Their concerns in this world are only secondary to Christ. Christ is primary in their lives. They work to earn money. But they do not love money. They only care about the glory of God. They care about the rule of God enough to seek it.
Theirs is not merely a profession of faith. Theirs is a possession of faith. Theirs is a perseverance of faith. Their perseverance in Christ is marked by a willing obedience to God’s will. This willing obedience to God’s will produces a harvest of fruitfulness for the kingdom of God.