1 Corinthians 3:10-15 ^"According to the grace of God which was given to me, as a wise master builder I have laid the foundation, and another builds on it. But let each one take heed how he builds on it. ¹¹ For no other foundation can anyone lay than that which is laid, which is Jesus Christ. ¹² Now if anyone builds on this foundation with gold, silver, precious stones, wood, hay, straw, ¹³ each one's work will become clear; for the Day will declare it, because it will be revealed by fire; and the fire will test each one's work, of what sort it is. ¹⁴ If anyone's work which he has built on it endures, he will receive a reward. ¹⁵ If anyone's work is burned, he will suffer loss; but he himself will be saved, yet so as through fire."

John 13:27 says,

27 Now after the piece of bread, Satan entered him. Then Jesus said to him, "What you do, do quickly." (NKJV)

Here's how the New American Standard Bible reads:

27 After the morsel, Satan then entered into him. Therefore Jesus said to him, "What you do, do quickly."

This changes the meaning of the interaction between Jesus and Satan.

As a result of Satan entering Judas, the text says, THEREFORE Jesus said to him..."What you do, do quickly."

Jesus is talking to Satan, NOT to Judas exclusively!

Certainly this sheds some light on the next verse:

 "Now no one of those reclining at the table knew for what purpose He had said this to him."

Jesus was talking to Satan, not to Judas.