Those who are fit for communion with God may be known by a conformity to His law, which is illustrated in various important particulars. (Psa 15:1-5)
abide--or, "sojourn" (compare Psa 5:4), where it means under God's protection here, as (Psa 23:6, Psa 27:4, Psa 27:6) communion.
tabernacle--seat of the ark (Sa2 6:17), the symbol of God's presence.
holy hill--(Compare Psa 2:6).