Luke 7:30βουλὴν
But the Pharisees and experts in the law rejected God’s purpose for themselves, because they had not been baptized by John.
Acts 2:23βουλῇ
He was delivered up by God’s set plan and foreknowledge, and you, by the hands of the lawless, put Him to death by nailing Him to the cross.
1 Corinthians 4:5βουλὰς
Therefore judge nothing before the appointed time; wait until the Lord comes. He will bring to light what is hidden in darkness and will expose the motives of men’s hearts. At that time each will receive his praise from God.
Ephesians 1:11βουλὴν
In Him we were also chosen as God’s own, having been predestined according to the plan of Him who works out everything by the counsel of His will,
Hebrews 6:17βουλῆς
So when God wanted to make the unchanging nature of His purpose very clear to the heirs of the promise, He guaranteed it with an oath.

Abbott-Smith

βουλή, -ῆς, ἡ
(βούλομαι), [in LXX frequently for עֵצָה ;]
counsel, purpose (in cl., esp. of the gods): Luk.23:51, Act.4:28 5:38 19:1 27:12, 42; pl., 1Co.4:5; of the Divine purpose, Heb.6:17; τ. βουλὴν τ. θελήματος αὐτοῦ, Eph.1:11; β. τ. Θεοῦ, Luk.7:30, Act.2:23 13:36 20:27.†
(AS)

Sources: Abbott-Smith’s Manual Greek Lexicon of the New Testament (1922, public domain) and glosses from STEPBible TBESG (CC BY 4.0); STEPBible TAGNT (Greek New Testament, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.