John the Apostle
John 20:28ESV·traditional attribution

Thomas answered him, “My Lord and my God!”

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of another appearance of Christ to his disciples, after his resurrection, when Thomas was now with them. And concerning this we may observe, I. When it was that Christ repeated his visit to his disciples: After eight days, that day seven-night after he rose, which must therefore be, as that was, the first day of the week. 1.

Commenting on John 20:26-31

John Gill Reformed Baptist @doctorgill

And Thomas answered and said unto him,.... Without examining his hands and side, and as astonished at his condescension and grace, and ashamed of his unbelief: my Lord and my God; he owns him to be Lord, as he was both by creation and redemption; and God, of which he was fully assured from his omniscience, which he had given a full proof of, and...

Albert Barnes Presbyterian @notesbybarnes

Verse 28. My Lord and my God. In this passage the name God is expressly given to Christ, in his own presence and by one of his own apostles. This declaration has been considered as a clear proof of the divinity of Christ, for the following reasons: 1st. There is no evidence that this was a mere expression, as some have supposed, of surprise or astonishment. 2nd.