▪︎ Heb 6:16-17;
Interposed (μεσιτεύω – Greek) – mesiteuó ► verb, to interpose (as arbiter), i.e (by implication) to ratify (as surety), to sponsor, to pledge oneself, to give surety — confirm, guarantee, from mediator. Used only once in NT.

Mediator (μεσίτης – Greek) – mesités ► noun, a go-between, i.e. (simply) an internunciator [signal between two parties], or (by implication) a reconciler (intercessor), mediator – Heb 8:6, 9:15, 12:24; Gal 3:19-20; 1Tim 2:5;

Purposed (προτίθημι – Greek) – protithémi ► verb, middle voice, To set forth, to propose, to purpose, to plan – Eph 1:9; Rom 3:25;

Administration (οἰκονομία – Greek) – oikonomia ► stewardship, administration, management, dispensation, e.g. administration (of a household, estate or period of time) – Eph 1:10; 3:2; 1Cor 9:17;

Predestined (προορίζω – Greek) – proorizó ► To predestine, to foreordain, determine before, (from pró, “before” and horízō, “establish boundaries, limits”) – properly, pre-horizon, pre-determine limits (boundaries) – Eph 1:11; Eph 1:5; Rom 8:29-30;

Oath (שָׁבַע – Hebrew) – shaba` ► verb, To swear, to take an oath, to adjure – Exod 32:13; Deut 4:31, 7:8, 29:13; Josh 21:44, 45; Judges 2:1; Ps 110:4; Isa 45:23;

Swear (ὀμνύω – Greek) – omnuó ► verb, To swear, to take an oath – Matt 5:34

Other uses of Swear, with בִּי by myself Genesis 22:16 (JE), Jeremiah 22:5 (clause כִּי), Jeremiah 49:13 (id.), Isaiah 45:23 (id.), with בְּקָדְשׁוֺ Amos 4:2 (id.), compare Psalm 89:36 (“” אִם אֲכַזֵּב), compare also Amos 6:8; Amos 8:17; Jeremiah 44:26; Jeremiah 51:14; Isaiah 62:8; swear, followed by infinitive Deuteronomy 1:35; Deuteronomy 4:21; Joshua 21:41 (van d. H. Baer; Joshua 21:43 Gi), followed by מִן infinitive= not to Isaiah 54:9 (twice in verse) followed by אִם Psalm 90:10, followed by לֵאמֹר Deuteronomy 1:34; Isaiah 14:24; Numbers 32:10(P); followed by oratio recta [direct speech] Psalm 110:4; with ל person take an oath to, Genesis 24:7(J), Exodus 13:11 (J), Deuteronomy 2:14 7t. Deuteronomy (accusative of congnate meaning with verb Deuteronomy 7:8; verb Deuteronomy 9:5), Ezekiel 16:8 (“” בּוֺא בִבְרִית, Psalm 89:4 (“” כָּרַת בְּרִית), Psalm 89:50 (בֶּאֱמוּנָתֶ֑ךָ), +; ל person + infinitive (usually to give land Exodus 13:5 (J), Deuteronomy 1:8 9t. Deuteronomy;

Joshua 1:6; Joshua 5:6 (twice in verse) (all RD), Jeremiah 11:5 (+ accusative of congnate meaning with verb), Jeremiah 32:22; ל person + accusative of thing (usually land) = promise by oath to Genesis 50:24; Exodus 33:1; Numbers 11:12 (all J), Numbers 14:16,23 (JE), Numbers 32:11 (P), Judges 2:1; Micah 7:20; Deuteronomy 6:18+ 8 t. Deuteronomy (object covenant Deuteronomy 4:31; Deuteronomy 8:18); ל person omitted Deuteronomy 31:21.