'End of the Age' in the Bible

and the enemy who sowed them is the devil, and the harvest is a full end of the age, and the reapers are messengers.

so shall it be in the full end of the age, the messengers shall come forth and separate the evil out of the midst of the righteous,

And when he is sitting on the mount of the Olives, the disciples came near to him by himself, saying, 'Tell us, when shall these be? and what is the sign of thy presence, and of the full end of the age?'

teaching them to observe all, whatever I did command you,) and lo, I am with you all the days -- till the full end of the age.'