'Strict' in the Bible

“So be alert [give strict attention, be cautious and active in faith], for you do not know which day [whether near or far] your Lord is coming.

Therefore, be on the alert [be prepared and ready], for you do not know the day nor the hour [when the Son of Man will come].

Keep actively watching and praying that you may not come into temptation; the spirit is willing, but the body is weak.”