When Adam sinned, man became corrupted with the seed of sin. Everyone born after Adam was born into sin. Everyone except Christ. He was born of a virgin. No man’s seed corrupted His being. In John chapter 3 He said that we needed to be born again. Why? Because we must put to death the old man born into sin, and be born by the Spirit of God. Everyone who is born of the Spirit does not sin. Read 1 John – especially chapter 3. Anyone who continues to sin doesn’t understand who Jesus was and is or why He came (1 John 3:6)
Matthew 7 again warns us not to be deceived about this law of each seed producing after its own kind. Every good tree produces good fruit, and every bad tree produces bad fruit. Then Jesus gives us a promise. In the teaching of the wise and foolish man, He says that anyone who follows His teaching will stand. When the circumstances of life come against us, we will stand and produce the fruit of righteousness. It is His promise. But in order to inherit the promise we must understand this foundational truth that each seed produces after its own kind.