Isa 26:10-11
10 Though grace is shown to the wicked,
they do not learn righteousness;
even in a land of uprightness they go on doing evil
and regard not the majesty of the LORD.
Let's do a FULL light and dark replacement for the above text:
'Though "LIGHT" is shown to the "dark", they do not learn "light"; even in a land of "light" they go on doing "dark" and regard not the majesty of "LIGHT."'
Jesus confirms that.
John 3:19-20
19 This is the verdict: Light has come into the world, but men loved darkness instead of light because their deeds were evil.
Peter emphasises the blatant defiance:
2 Peter 2:13-14
Their idea of pleasure is to carouse in broad daylight. They are blots and blemishes, reveling in their pleasures while they feast with you. 14 With eyes full of adultery, they never stop sinning;
1 Thess 5:4-5
4 But you, brothers, are not in darkness so that this day should surprise you like a thief. 5 You are all sons of the light and sons of the day. We do not belong to the night or to the darkness.