2 occurrences in 12 translations

'Necessity' in the Bible

Now set your heart and your soul to seek (inquire of, require as your vital necessity) the Lord your God. Arise and build the sanctuary of the Lord God, so that you may bring the ark of the covenant of the Lord and the holy articles and utensils of God into the house built for the Name (Presence) of the Lord.”

“As for you, Solomon my son, know the God of your father [have personal knowledge of Him, be acquainted with, and understand Him; appreciate, heed, and cherish Him] and serve Him with a blameless heart and a willing mind; for the Lord searches all hearts and minds, and understands every intent and inclination of the thoughts. If you seek Him [inquiring for and of Him and requiring Him as your first and vital necessity] He will let you find Him; but if you abandon (turn away from) Him, He will reject you forever.

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Strong's
Root Form
Definition
Usage
ἀναγκή 
Anagke 
Usage: 15

ἀναγκαῖος 
Anagkaios 
Usage: 8

χρεία 
Chreia 
Usage: 36