John Calvin Commentary John 14:4

"And whither I go, ye know the way." — John 14:4 (ASV)

And whither I go you know. Since we need no ordinary fortitude to patiently endure being separated from Christ for so long, He adds another confirmation: that the disciples know His death is not a destruction but a passage to the Father; and next, that they know the way which they must follow, so that they may come to share in the same glory.

Both these points should be carefully observed. First, we must see Christ through the eyes of faith in the heavenly glory and a blessed immortality; and, secondly, we should know that He is the first-fruits of our life, and that the way which was closed against us has been opened by Him.