词源趣谈 | cover a multitude of sins 掩盖种种错误和弱点

something covers a multitude of sins 指故意掩盖种种错误和弱点。

该表达出自《钦定版圣经》中《彼得前书》(1 Peter)第4章第8节:

And above all things have fervent charity among yourselves:for charity shall cover the multitude of sins.
最要紧的,是彼此切实相爱,因为爱能遮掩许多的罪。

(拓展学习:小词详解 | multitude