Deuteronomy 13:6-11

ASV_Strongs(i)
  6 H251 If your brother, H1121 the son H517 of your mother, H1121 or your son, H1323 or your daughter, H802 or the wife H2436 of your bosom, H7453 or your friend, H5315 that is as your own soul, H5496 entice H5643 you secretly, H559 saying, H3212 Let us go H5647 and serve H312 other H430 gods, H3045 which you have not known, H1 you, nor your fathers;
  7 H430 of the gods H5971 of the peoples H5439 that are round about H7138 you, near H7350 unto you, or far off H7097 from you, from the one end H776 of the earth H7097 even unto the other end H776 of the earth;
  8 H14 you shall not consent H8085 unto him, nor listen H5869 unto him; neither shall your eye H2347 pity H2550 him, neither shall you spare, H3680 neither shall you conceal him:
  9 H2026 but you shall surely H2026 kill H3027 him; your hand H7223 shall be first H4191 upon him to put him to death, H314 and afterwards H3027 the hand H5971 of all the people.
  10 H5619 And you shall stone H68 him to death with stones, H1245 because he has sought H5080 to draw you away H3068 from Jehovah H430 your God, H3318 who brought you out H776 of the land H4714 of Egypt, H3318 out H1004 of the house H5650 of bondage.
  11 H3478 And all Israel H8085 shall hear, H3372 and fear, H6213 and shall do H3254 not more H1697 any H7451 such wickedness H7130 as this is in the middle of you.