1 John 4:1-3

KJV_Strongs(i)
  1 G27 Beloved G4100 , believe [G5720]   G3361 not G3956 every G4151 spirit G235 , but G1381 try [G5720]   G4151 the spirits G1487 whether G2076 they are [G5748]   G1537 of G2316 God G3754 : because G4183 many G5578 false prophets G1831 are gone out [G5758]   G1519 into G2889 the world.
  2 G1722 Hereby G3739   G5129   G1097 know ye [G5719]   [G5720]   G4151 the Spirit G2316 of God G3956 : Every G4151 spirit G3670 that confesseth [G5719]   G2424 that Jesus G5547 Christ G2064 is come [G5756]   G1722 in G4561 the flesh G2076 is [G5748]   G1537 of G2316 God:
  3 G2532 And G3956 every G4151 spirit G3739 that G3670 confesseth [G5719]   G3361 not G2424 that Jesus G5547 Christ G2064 is come [G5756]   G1722 in G4561 the flesh G2076 is [G5748]   G3756 not G1537 of G2316 God G2532 : and G5124 this G2076 is [G5748]   G500 that spirit of antichrist G3739 , whereof G191 ye have heard [G5754]   G3754 that G2064 it should come [G5736]   G2532 ; and even G3568 now G2235 already G2076 is it [G5748]   G1722 in G2889 the world.