Alah means to go up, ascend, rise, or climb. It is one of the most common verbs in the Hebrew Bible (~890 occurrences) and carries both literal and figurative/theological meanings: climbing a mountain, ascending to Jerusalem, rising in social status, or going up before God in worship.
The related noun olah (burnt offering) derives directly from alah — it is the sacrifice that "goes up" in smoke to God, signifying total consecration. The connection between ascent and offering is deeply embedded in Israelite worship.
Jerusalem is geographically and theologically "above." Israelites "go up" (alah) to Jerusalem for the pilgrimage feasts (Psalm 122:4). This physical ascent mirrored spiritual approach to God. The Psalms of Ascent (120–134) were sung on this journey.
Moses ascending Sinai (alah, Exodus 19:3) is a central image: he climbs into the divine presence to receive the Torah. The prophet Elijah's translation — "went up in a whirlwind" (alah, 2 Kings 2:11) — is a dramatic ascent into God's presence without death.
The New Testament's Ascension of Christ (Luke 24:51; Acts 1:9) echoes the theology of alah: Jesus goes up to the Father, entering the Most Holy Place in the heavenly tabernacle (Hebrews 9:24), interceding there as the ultimate Priest.