Charles Ellicott Commentary Psalms 63:2

"So have I looked upon thee in the sanctuary, To see thy power and thy glory." — Psalms 63:2 (ASV)

To see thy power ... —The transposition of the clauses in the Authorized Version weakens the sense. Render, So (that is, in this state of religious fervor) in the sanctuary have I had vision of you, seeing your might and glory. The psalmist means that while he saw with his eyes the outward signs of Divine glory, he had a spiritual vision (the Hebrew word is that generally used for prophetic vision) of God.