Matthew 7:18
A good tree cannot produce bad fruits, nor a worthless tree produce good fruits.
1 John 3:9-10
Whoever has been begotten of God does not practise sin, because his seed abides in him, and he cannot sin, because he has been begotten of God.
Galatians 5:17
For the flesh lusts against the Spirit, and the Spirit against the flesh: and these things are opposed one to the other, that ye should not do those things which ye desire;
Treasury of Scripture Knowledge
Summary
A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.
Cannot
General references
Bible References
Cannot
Galatians 5:17
For the flesh lusts against the Spirit, and the Spirit against the flesh: and these things are opposed one to the other, that ye should not do those things which ye desire;
1 John 3:9
Whoever has been begotten of God does not practise sin, because his seed abides in him, and he cannot sin, because he has been begotten of God.
General references
Luke 6:43
For there is no good tree which produces corrupt fruit, nor a corrupt tree which produces good fruit;