people who live in glass houses should not throw stones
Definition:  people with faults should not disparage/criticize others as they have faults of their own
Usage:  why are you blaming the poor child for the little mistake that she made, you did the same thing, and no one was on your case; mind you that people who live in glass houses should not throw stones

SEPEDI
Translation:  batho bao ba dulago ka ‘ngwakong ya galase, ga se ba swanela go foša maswika
Proverb: tšhwene ga e ipone makopo

XITSONGA
Translation:  vanhu lava tshamaka etindlwini ta manghilazi a va fanelangi ku hoxa maribye
Proverb: u nga voni xilavi etihlweni ra makwavo kasi ka wena i ritsandza

TSHIVENḒA
Translation:  vhathu vha no dzula nḓuni dza ngilasi a vha tei u posa vhaṅwe nga matombo
Proverb: ḽi naka ḽi tshi hoha ḽiṅwe didinngwe, ḽi tshi hohwa ḽi ri mavhala anga