21 in as moche as when they knewe god they glorified him not as God nether were thakfull but wexed full of vanities in their imaginacions and their folisshe hertes were blynded.
Bible verses about "unthankfulness" | Tyndale
Romans 1:21
1 Thessalonians 5:18
18 In all thinges geve thankes. For this is the wyll of God in Christ Iesu towarde you.