1 Corinthians 14:21-23

ASV_Strongs(i)
  21 G1722 In G3551 the law G3754 it is written, G1722 By G2084 men of strange tongues G2532 and G1722 by G5491 the lips G2087 of strangers G2980 will I speak G5129 unto this G2992 people; G2532 and G3761 not G3779 even thus G1522 will they G1522 hear G3450 me, G3004 saith G2962 the Lord.
  22 G5620 Wherefore G1100 tongues G1526 are G1519 for G4592 a sign, G3756 not G3588 to them G4100 that believe, G235 but G3588 to the G571 unbelieving: G1161 but G4394 prophesying G571 is for a sign, not G3588 to the G571 unbelieving, G235 but G3588 to them G4100 that believe.
  23 G1437 If G3767 therefore G3650 the whole G1577 church G4905 be assembled together G2532 and G3956 all G2980 speak G1100 with tongues, G1161 and G1525 there come in G2399 men unlearned G2228 or G571 unbelieving, G2046 will they G3756 not G2046 say G3754 that G3105 ye are mad?