ISB ~ Mark 10 v27

it is impossible:We are completely incapable of reaching salvation on our own. The human family descended from Adam suffers from a wounded nature and is unable to obey God completely or consistently without divine assistance (Rom 7:21-25). Only by cooperating with God and his grace can we fulfill the righteous requirements of his Law (Rom 8:4). By ourselves we can do nothing (Jn 15:5), but with the Lord’s help all things are possible (Jer 32:17; Lk 1:37; CCC 2082).