Matthew 7:18
A healthy tree cannot bear poor fruit, and a sickly tree cannot bear good fruit.
1 John 3:9-10
No one who is born of God makes a practice of sinning, because the God-given life-principle continues to live in him, and so he cannot practice sinning, because he is born of God.
Galatians 5:17
For the cravings of the lower nature are just the opposite to those of the Spirit, and the cravings of the Spirit are just the opposite of those of the lower nature; these two are opposed to each other, so that you cannot do anything you please.
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 cravings of the lower nature are just the opposite to those of the Spirit, and the cravings of the Spirit are just the opposite of those of the lower nature; these two are opposed to each other, so that you cannot do anything you please.
1 John 3:9
No one who is born of God makes a practice of sinning, because the God-given life-principle continues to live in him, and so he cannot practice sinning, because he is born of God.
General references
Luke 6:43
"For there never is a healthy tree that bears poor fruit, nor a sickly tree that bears good fruit.