This Advent, as we wait for the true light who is coming into the world (John 1:9) we pause and reflect on our Christmas hope. As a friend said last night, we do not linger forever in uncertainty but as an expectant mother who labors in anticipation of the joy her child will surely bring.
Our assurance of salvation — past, present, and future — depends on the unique person of Jesus Christ and our relationship to him, and there's perhaps nothing more central to Jesus and our relationship with him than that he became flesh, was made like us in every respect (Heb. 2:17), so that by grace we might become partakers of his divine nature (2 Peter 1:4).
This isn't something the church merely teaches but an event of history, revealed for all men and women in the one-of-a-kind person Jesus is, the human and divine Son of God. From the moment of Christ's conception, eternity himself inhabits time so that events of his life on earth long since past are forever present to us in Jesus. This is one reason our joy at Christmas is so palpable and real ... when we worship Jesus at Christmas, we are once again with Mary and Joseph on that cold, dark night as they swaddle “he who made the starry skies” and lay him in a manger.