Matthew 3:10

and already the axe lies at the root of the trees; every tree, therefore, which bears not good fruit is cut down and cast into the fire.

John 15:2-5

Every branch in me that bears not fruit he takes away; and every branch that bears fruit he trims, that it may bear more fruit.

Galatians 5:22-23

But the fruit of the Spirit is love, joy, peace, long suffering, kindness, goodness, faith,

Philippians 1:11

filled with the fruit of righteousness, through Jesus Christ, to the glory and praise of God.

Jude 1:12

These are breakers at your love-feasts, feasting with you without fear, feeding themselves, clouds without water driven about by winds, autumnal trees without fruit, twice dead, plucked up by the roots,

Treasury of Scripture Knowledge

Summary

They shall still bring forth fruit in old age; they shall be fat and flourishing;

General references

Bible References

They

Matthew 3:10
and already the axe lies at the root of the trees; every tree, therefore, which bears not good fruit is cut down and cast into the fire.
John 15:2
Every branch in me that bears not fruit he takes away; and every branch that bears fruit he trims, that it may bear more fruit.
Galatians 5:22
But the fruit of the Spirit is love, joy, peace, long suffering, kindness, goodness, faith,
Philippians 1:11
filled with the fruit of righteousness, through Jesus Christ, to the glory and praise of God.
Jude 1:12
These are breakers at your love-feasts, feasting with you without fear, feeding themselves, clouds without water driven about by winds, autumnal trees without fruit, twice dead, plucked up by the roots,

General references

Luke 6:43
For there is no good tree which bears bad fruit, nor, again, a bad tree which bears good fruit.