Romans 6:11-13

Romans 6:11-13. Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord. Let not sin therefore reign in your mortal body, that ye should obey it in the lusts thereof. Neither yield ye your members as instruments of unrighteousness unto sin: but yield yourselves unto God, as those that are alive from the dead, and your members as instruments of righteousness unto God.

"Your members" - that is, the various parts of your body and the faculties of your mind are to be yielded up to God "as instruments of righteousness."