'Claims' in the Bible

Then I saw all the work of God--man [is] not able to discover the work that is done under the sun. Although man may toil in seeking, he cannot find it. Even if a wise man claims [that he] knows it, he cannot find it.

to guide [the] needy away from legal claims, and to rob the justice from the poor of my people, to make widows their spoil; and they plunder orphans.

You [will be] in the right, Yahweh, when I complain to you. Even so, let me speak [my] claims with you. Why does [the] way of [the] wicked succeed? All those who deal treacherously with treachery are at ease.