'Setting' in the Bible

Every good thing given and every perfect gift is from above; it comes down from the Father of lights [the Creator and Sustainer of the heavens], in whom there is no variation [no rising or setting] or shadow cast by His turning [for He is perfect and never changes].

and the tongue is a fire, the world of the unrighteousness, so the tongue is set in our members, which is spotting our whole body, and is setting on fire the course of nature, and is set on fire by the gehenna.