The sinful nature wants to do evil, which is just the opposite of what the Spirit wants. And the Spirit gives us desires that are the opposite of what the sinful nature desires. These two forces are constantly fighting each other, so you are not free to carry out your good intentions.
Galatians 5:17 NLT (see all of chapter 5)
Even after we choose to follow Christ, the war with our sinful nature is not completely snuffed out. I have to consciously choose which desires to follow and which force will guide my life,. This is important to know so that I am not blindsided by temptations and sin, and also so that I don't feel beat up when I fall but rather look back to the cross of Jesus and follow the Holy Spirit's leading.
Nail the passions and desires of my sinful nature to Jesus' cross and crucify them there (v.29)! Follow the Spirit's leading in every part of my life (v.25).
Heavenly Father, You are so good to me. Thank you for giving me the choice to follow You, and thank you for giving me the Holy Spirit, who empowers me to follow You rather than remain overwhelmed and crushed by my own sinful nature. I choose to leave my passions and desires nailed to Jesus' cross. They are crucified and dead. I choose to follow Your leading in every part of my life--no dark corners (Luke 11:36). May my life be radiantly filled with the fruits of the Spirit: love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control (Galatians 5:22-23). Thank you for loving me and leading me into real life with You. I love you!