18 defending the fatherless and the oppressed, so that mere earthly mortals will never again strike terror.

Read Psalm 10:18 Using Other Translations

To judge the fatherless and the oppressed, that the man of the earth may no more oppress.
to do justice to the fatherless and the oppressed, so that man who is of the earth may strike terror no more.
You will bring justice to the orphans and the oppressed, so mere people can no longer terrify them.