In His preaching, the Lord Jesus would often use that word “must.” in John 3:7, John 3:14. There is one here in John 9:4: “I must work the works of Him that sent Me, while it is day: the night cometh, when no man can work”. “Must,” of course, is a word of necessity. It is an urgency of God. So Fr. Hoffman speaks then of the necessity and the Urgency of time. “We must work the works of Him that sent Me, while it is day: the night cometh, when no man can work”