Good, short piece by John Piper showing the scriptural warrant for (what many of us call) the doctrines of grace (total depravity, unconditional election, limited atonement, irresistible grace, and perseverance of the saints). Piper begins:
We believe that these 5 truths are biblical and therefore true. We believe that they magnify God’s precious grace and give unspeakable joy to sinners who have despaired of saving themselves.