Romans 1:20-21

new(i)
  20 G1063 For G517 the invisible things G846 of him G575 from G2937 the creation G2889 of the world G2529 [G5743] are clearly seen, G3539 [G5746] being comprehended G4161 by the things that are made, G5037 even G846 his G126 eternal G1411 power G2532 and G2305 Godhead; G1519 so G846 that they G1511 [G5750] are G379 without excuse:
  21 G1360 Because G1097 [G5631] that, when they knew G2316 God, G1392 [G5656] they glorified G3756 him not G5613 as G2316 God, G2228 neither G2168 [G5656] were thankful; G235 but G3154 [G5681] became vain G1722 in G846 their G1261 imaginations, G2532 and G846 their G2588 heart G4654 [G5681] was darkened G801 without understanding.