Be ye therefore ready also: for the Son of man cometh at an hour when ye think not. Luke 12:40 (KJV)
And working together with Him, we also urge you not to receive the grace of God in vain for He says, “At the acceptable time I listened to you, and on the day of salvation I helped you”; behold, now is “the acceptable time,” behold, now is “the day of salvation” 2 Cor 6:1-2 (NAS)