What is the meaning of 1 Timothy 3:15?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

in case I am delayed, so that you will know how each one must conduct himself in God’s household, which is the church of the living God, the pillar and foundation of the truth.

Berean Standard Bible (BSB)

but if I wait long, that you may know how men ought to behave themselves in the house of God, which is the assembly of the living God, the pillar and ground of the truth.

World English Bible (WEB)

But{G1161} if{G1437} I tarry long{G1019}{(G5725)}, that{G2443} thou mayest know{G1492}{(G5762)} how{G4459} thou oughtest{G1163}{(G5748)} to behave thyself{G390}{(G5745)} in{G1722} the house{G3624} of God{G2316}, which{G3748} is{G2076}{(G5748)} the church{G1577} of the living{G2198}{(G5723)} God{G2316}, the pillar{G4769} and{G2532} ground{G1477} of the truth{G225}.

Strong's King James

(15) but if I'm delayed, so that you will know how you should live in אֱלֹהִים Elohim's house which is the assembly of the living אֱלֹהִים Elohim, the pillar and support of firm truth.

The F.O.G*

[15] But if I'm delayed, you'll have these guidelines for how people should conduct themselves in יהוה's household - the vibrant community of the living God, standing firm as a pillar and foundation of truth in a world of shifting shadows.

The F.O.G Paraphrase

and if I delay, that thou mayest know how it behoveth thee to conduct thyself in the house of God, which is an assembly of the living God—a pillar and foundation of the truth,

Young's Literal Translation