'Day of Salvation' in the Bible

And being also co-laborers we exhort you not to receive the grace of God in vain,??2 for he says, In an acceptable time I heard you, and in a day of salvation I helped you; behold, now is an acceptable time, behold, now is a day of salvation,??3 giving no offense in any thing, that the ministry may not be blamed,

(For he saith, I have heard thee in a time accepted, and in the day of salvation have I succoured thee: behold, now is the accepted time; behold, now is the day of salvation.)