Mark,

When I said, "Catholics trusting in Jesus' Word (Holy Scripture/Commandments/Statutes) and not man's understanding, I was referring to Jeremiah 17:9, "the heart is deceitful above all things, who can understand it?" In other words, our sinful natures cannot be counted on. Man today thinks he is either equal or perhaps even better than God - he relies more on his own understanding rather than relying on the Word of God. In Proverbs 3:7, it says "Be not wise in your own eyes; fear the Lord and turn away from evil." We cultivate God-trusting hearts by meditating on Holy Scripture, going to Holy Mass as often as possible (not only on Sunday) and receiving Jesus in the Holy Eucharist in the state of grace, asking God's forgiveness, mercy and grace through the Sacrament of Confession, by kneeling before Jesus in the Blessed Sacrament and by asking our Blessed Mother to pray for us by praying the Rosary (especially helpful for those struggling with the sin of impurity (sexual sins).