Deuteronomium 31:22

Verse 22. And particularly instructs him that it is necessary he should fight perpetually against hereditary evils, and the falses favouring them; that they must be contended against with all the might of the soul, and with full trust and confidence in heaven: for by this means alone can the soul be brought to the heavenly state designed for it by the Lord; who Himself will concur with it in every effort.