26 After eight days again his disciples were inside, and Thomas was with them. Jesus came, the doors being locked, and stood in the midst, and said, “Peace be to you.” 27 Then he said to Thomas, “Reach here your finger, and see my hands. Reach here your hand, and put it into my side. Don’t be unbelieving, but believing.” 28 Thomas answered him, “My Lord and my God!” 29 Jesus said to him, “Because you have seen me, [1] you have believed. Blessed are those who have not seen, and have believed.”
30 Therefore Jesus did many other signs in the presence of his disciples, which are not written in this book; 31 but these are written, that you may believe that Jesus is the Christ, the Son of God, and that believing you may have life in his name.
Matthew Henry's Commentary on John 20:26-31
Commentary on John 20:26-29
(Read John 20:26-29)
That one day in seven should be religiously observed, was an appointment from the beginning. And that, in the kingdom of the Messiah, the first day of the week should be that solemn day, was pointed out, in that Christ on that day once and again met his disciples in a religious assembly. The religious observance of that day has come down to us through every age of the church. There is not an unbelieving word in our tongues, nor thought in our minds, but it is known to the Lord Jesus; and he was pleased to accommodate himself even to Thomas, rather than leave him in his unbelief. We ought thus to bear with the weak, 1 John 5:11.
Commentary on John 20:30-31
(Read John 20:30-31)
There were other signs and proofs of our Lord's resurrection, but these were committed to writing, that all might believe that Jesus was the promised Messiah, the Saviour of sinners, and the Son of God; that, by this faith, they might obtain eternal life, by his mercy, truth, and power. May we believe that Jesus is the Christ, and believing may we have life through his name.