CCC 1867 The catechetical tradition also recalls that there are “sins that cry to heaven”: the blood of Abel,¹ the sin of the Sodomites,² the cry of the people oppressed in Egypt,³ the cry of the foreigner, the widow, and the orphan,⁴ injustice to the wage earner.⁵

1 Cf. Gen 4:10.
2 Cf. Gen 18:20; 19:13.
3 Cf. Ex 3:7-10.
4 Cf. Ex 20:20-22.
5 Cf. Deut 24:14-15; Jas 5:4.