New Defender's Study Bible Notes
9:8 for himself. Even though Aaron had just been anointed as high priest, with all his holy garments (Leviticus 8:7-9, 12), it was still necessary for Aaron to offer a sin offering for himself. Similarly, it is still essential for believers today to receive daily cleansing from sin (I John 1:7,9) through Christ.
9:23 glory of the LORD. This glory cloud was not God Himself (John 1:18), but a visible manifestation of His presence, the shekinah glory.