"All sin comes from unbelief in the promises of God. The sinful state of our hearts is owing to unbelief in God's super-abounding willingness and ability to work for us in every situation of life so that everything turns out for our good. In these sermons, Piper aims to clarify what it means, at the most practical level, to live by faith in the promises of God, and to equip us with weapons to battle the root of unbelief that threatens to grow in our hearts again and again every day. Some issues of unbelief covered in these messages are: anxiety, misplaced shame, regret, covetousness, lust, envy, bitterness, impatience, despondency and pride."
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