"And it shall come to pass at that time, [that] I will search Jerusalem with candles, and punish the men that are settled on their lees: that say in their heart, The LORD will not do good, neither will He do evil." - Zephaniah 1:12 KJV
"Settled", according to Strongs Concordance, means to become dense -- "Lees" means dregs, old settlings!
When our hearts do not believe that the Lord is moving in our lives, we turn to other things and become dense, settled, and lukewarm. Jesus s