Eternity
By saying that God is eternal we mean that in essence, life, and action He is altogether beyond temporal limits and relations. He has neither beginning, nor end, nor duration by way of sequence or succession of moments. There is no past or future for God — but only an eternal present. If we say that He was or that He acted, or that He will be or will act, we mean in strictness that He is or that He acts; and this truth is well expressed by Christ when He says (John 8:58 — A.V.): “Before Abraham was, I am.” Eternity, therefore, as predicated of God, does not mean indefinite duration in time — a meaning in which the term is sometimes used in other connections — but it means the total exclusion of the finiteness which time implies. We are obliged to use negative language in describing it, but in itself eternity is a positive perfection, and as such may be best defined in the words of Boethius as being “interminabilis vitae tota simul et perfecta possessio,” i.e. possession in full entirety and perfection of life without beginning, end, or succession.