In most cases, the meaning of "before" is pretty straightforward, both as a way of assessing relative time, and in its use meaning "in someone's presence." It takes on a deeper significance, though, when used in connection with the Lord. To be "before" the Lord means not just in His presence, but also receiving the desire for good and the understanding of truth from Him, and living according to them. And when used as an assessment of time in connection with the Lord, "before" means "from eternity," and refers to a spiritual state rather than time as we experience it.

(References: Apocalypse Revealed 366, 617; Arcana Coelestia 6983, 8439, 9888)

1382. People inevitably confuse Divine Infinity with infinity of space. And because they do not conceive of infinity of space as anything other than nothingness, as indeed it is, neither do they believe in Divine Infinity. The same applies to Eternity. They cannot conceive of it except as an eternity of time, but it is manifested continually by means of time to those who dwell within [space and] time. The true idea of Divine Infinity is instilled into angels by their being instantaneously under the Lord's view with no intervening space or time even if they came from the ends of the universe. And the true idea of Divine Eternity is instilled into them by the fact that thousands of years do not appear to them as a period of time, almost as if they had lived for only a minute. Both ideas are also instilled by means of the fact that the present with them includes past and future together. Consequently they have no anxiety about things of the future, nor do they ever have any idea of death, but only of life. And so their whole present includes within it the Lord's Eternity and Infinity.