John the Apostle
John 16:18ESV·traditional attribution

So they were saying, “What does he mean by ‘a little while’? We do not know what he is talking about.”

Matthew Henry Presbyterian @wholebiblehenry

Our Lord Jesus, for the comfort of his sorrowful disciples, here promises that he would visit them again. I. Observe the intimation he gave them of the comfort he designed them, Joh 16:16. Here he tells them, 1. That they should now shortly lose the sight of him: A little while, and you that have seen me so long, and still desire to see me...

Commenting on John 16:16-22

John Gill Reformed Baptist @doctorgill

Verily, verily, I say unto you,.... A strong asseveration, a way of speaking often used by him, when he solemnly affirms any thing, and would assure of the truth of it, as here: that ye shall weep and lament; meaning at his death, when he should be removed from them, so that they should not see him; when they should be filled with inward grief...

Adam Clarke Methodist @methodicalclarke

What is this that he saith - They knew from what he had said that he was to die, but knew not what he meant by their seeing him again in a little time.