en_tn_condensed/isa/66/17.md

General Information:

Isaiah continues speaking.

They consecrate themselves

"They" are those who worship Yahweh but go against his laws.

enter the gardens

This is a place where people would go to worship idols. (See: rc://en/ta/man/translate/figs-explicit)

the one in the middle

This describes the leader of those of go to worship idols.

this is Yahweh's declaration

Yahweh speaks of himself by name to express the certainty of what he is declaring. Translate as in Isaiah 30:1. AT: "this is what Yahweh has declared" or "this is what I, Yahweh, have declared" (See: rc://en/ta/man/translate/figs-123person)