'Fatherless' in the Bible

‘They are fat and they are sleek (prosperous),They excel in acts of wickedness;They do not plead the cause,The cause of the orphan, so that they [the wicked] may prosper,And they do not defend the rights of the poor.

if you do not oppress the transient and the foreigner, the orphan, or the widow, and do not shed innocent blood [by oppression and by unjust judicial murders] in Jerusalem, nor follow after other gods to your own ruin,

Thus says the Lord, “Execute justice and righteousness, and rescue the one who has been robbed from the hand of his oppressor. And do no wrong; do no violence to the stranger, the fatherless, or the widow, nor shed innocent blood in this place.

“Leave your orphans behind; I will [do what is needed to] keep them alive.And let [those who are] your widows trust and confide in Me.”