John 10:10 (BSB)

The thief comes only to steal and kill and destroy. I have come that they may have life, and have it in all its fullness.

From John 10. Also in the ESV.

Commentary on John 10:10

• John Calvin (Reformed), Calvin's Commentaries on John 10:10: 10. The thief cometh not. By this saying, Christ — if we may use the expression — pulls our ear, that the ministers of Satan may not come upon us by surprise, when we are in a drowsy and careless state; for our excessive indifference exposes us, on every side, to false doctrines.
• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on John 10:1-18: It is not certain whether this discourse was at the feast of dedication in the winter (spoken of Joh 10:22), which may be taken as the date, not only of what follows, but of what goes before (that which countenances this is, that Christ, in his discourse there, carries on the metaphor of the sheep, Joh 10:26, Joh 10:27, whence it seems that that discourse...
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on John 10:10: The thief cometh not but for to steal,.... That is his first and principal view; to steal, is to invade, seize, and carry away another's property. Such teachers that come not in by the right door, or with a divine commission, seek to deceive, and carry away the sheep of Christ from him, though they are not able to do it; and to steal away...
• Albert Barnes (Presbyterian), Barnes' New Testament Notes on John 10:10: Verse 10. The thief cometh not, &c. The thief has no other design in coming but to plunder. So false teachers have no other end in view but to enrich or aggrandize themselves. I am come that they might have life. . Might have it more abundantly. Literally, that they may have abundance, or that which abounds.