John 20:27

Then saith he to Thomas
For whose sake he chiefly came, and whom he at once singled out from the rest, and called by name in the most friendly manner, without upbraiding or reproaching him for not believing the testimony that had been given him:

reach hither thy finger, and behold my hands, and reach hither thine
hand and thrust it into my side;
that is, make use of every way by seeing, feeling, and examining the scars in my hands, and the hole in my side, and satisfy thyself in the manner thou hast desired; which shows the omniscience of Christ, who knew what had passed between him and the other disciples, and the very words Thomas had expressed himself in; also his great humility and condescension in submitting himself to be examined in the very manner he had fixed; and likewise the reality of his resurrection:

and be not faithless, but believing;
in which words Christ dissuades him from unbelief, which is very evil in its own nature, and in its effects; it is the root of all evil; it unfits for duty, and renders the word unprofitable, and leads men off from Christ; and is the more aggravated in the people of God, by the instances, declarations, and promises of grace, and discoveries of love made unto them: and he also encourages him to believe. The exercise of the grace of faith is well pleasing to Christ; it gives glory to him, and makes for the soul's comfort; and a word from Christ, his power going along with it, will enable men to believe, as it did Thomas; which appears by what follows.