Psalm 135:4 → Exodus 19:5

Psalm 135:4 retrieves the Sinai identity-statement of Exodus 19:5 in the language of temple worship. The psalm is a liturgy of the sanctuary — sung by "the servants of the LORD, who stand in the house of the LORD" (vv. 1-2) — and at v. 4 it grounds that praise in Yahweh's elective choice: "For the LORD has chosen (bāḥar) Jacob as His own, Israel as His treasured possession (səgullâ)." The load-bearing lexical link is the rare, weighty noun səgullâ, the same crown-jewel term Yahweh first applied to Israel at the mountain ("you will be My treasured possession out of all the nations," Exod 19:5) — a king's private treasure kept for himself out of all his holdings. The original meaning is thus a worshiping community singing back to God the identity He declared at Sinai: election is not earned but conferred, and the right response is doxology. The road to Christ runs by Longitudinal Theme (the səgullâ-election motif that threads Exod 19:5 → Deut 7:6 / 14:2 / 26:18 → this psalm → Mal 3:17, and arrives in the NT when Peter calls the church a "people for His own possession," 1 Pet 2:9, and Paul speaks of "the redemption of God's own possession," Eph 1:14) and by Redemptive-Historical Progression (the founding Sinai utterance moves forward into Israel's settled temple liturgy, the people now praising God for the identity they were once given). This is Longitudinal Theme and progression rather than typology because Psalm 135:4 does not make Jacob/Israel a type that escalates into an antitype — it re-sings the identical conferred identity, carrying the səgullâ term down the canon unchanged. The telos: the believer who sees that being God's treasured possession is not a status to be achieved but a love to be received finds, with the psalmist, that the only fitting response is praise — and the New-Covenant people, made God's səgullâ by the blood of Christ (1 Pet 2:9), behold a God who set His delight on them before they could delight in Him, so that to be treasured by Him becomes the very ground of treasuring Him in return.