Noah Webster
Eternity
ETER'NITY, noun [Latin oeternitas.] Duration or continuance without beginning or end.
By repeating the idea of any length of duration, with the endless addition of number, we come by the idea of eternity
The high and lofty one who inhabiteth eternity Isaiah 57:15.
We speak of eternal duration preceding the present time. God has existed from eternity We also speak of endless or everlasting duration in future, and dating from present time or the present state of things. Some men doubt the eternity of future punishment, though they have less difficulty in admitting the eternity of future rewards.