Jamieson, Fausset and Brown on Ezekiel 16:49

49. pride--inherited by Moab, her offspring (Is 16:6; Jr 48:26), and by Ammon (Jr 49:4). God, the heart-searcher, here specifies as Sodom's sin, not merely her notorious lusts, but the secret spring of them, "pride" flowing from "fullness of bread," caused by the fertility of the soil (Ge 13:10), and producing "idleness."

abundance of idleness--literally, "the secure carelessness of ease" or idleness.

neither did she strengthen ... the poor--Pride is always cruel; it arrogates to itself all things, and despises brethren, for whose needs it therefore has no feeling; as Moab had not for the outcast Jews (Is 16:3, 4; Jr 48:27; Lu 16:19-21; Jas 5:1-5).