One other thought on the Spirit as a glory and covering:
In both Genesis and in Isaiah, at least part of the point has to do with provision and protection. A husband provides for his bride, and this is exactly what Yahweh did in the Garden of Eden and what Yahweh promises to do for His people in Isaiah. He insists upon being the one who clothes them and feeds them. That is the sign that He is in fact their Husband. Feeding themselves and clothing themselves or allowing others to feed and clothe them are acts of infidelity and adultery.
And surely this is what Jesus has in mind when He urges His disciples not to worry about what they will eat or drink or what they will wear (Mt. 6:25). When Jesus says that we cannot serve two masters/lords, perhaps another fitting translation would be no one can serve two “husbands.” No bride can have two husbands; you cannot be married to both God and mammon.
Therefore, Jesus say, if God is your husband/lord/master, then trust Him to provide for all of your needs. Be a faithful bride, and do not worry, do not fear. God has the entire world at His disposal; He owns the cattle on a thousand hills. He still has all of the treasures of Eden at His fingertips. His provision and abundance is His glory to cover us with.
It is His glory to multiply our flour and oil, to multiply the loaves and the fish, to pay our bills, to provide for all our needs according to His riches in glory.