Jesus said ‘I will come again’ – How do we respond?

¹⁸ “I do not speak concerning all of you. I know whom I have chosen; but that the Scripture may be fulfilled, ‘He who eats bread with Me has lifted up his heel against Me.’ ¹⁹ Now I tell you before it comes, that when it does come to pass, you may believe that I am He. ²⁰ Most assuredly, I say to you, he who receives whomever I send receives Me; and he who receives Me receives Him who sent Me.” John 13:18-20