אָ֗ח לֹא־פָדֹ֣ה יִפְדֶּ֣ה אִ֑ישׁ לֹא־יִתֵּ֖ן לֵאלֹהִ֣ים כָּפְרֽוֹ׃
Ninguno de ellos podrá en manera alguna redimir al hermano, Ni dar á Dios su rescate.
Rashi on Psalms
A brother cannot ransom his brother with money because the ransom of their soul is dearer than any possession. Therefore, perforce, his redemption is forever unattainable.