Because Of Christ's Righteousness

Based upon our own merits or righteousness, we dare not approach the thrice holy God. Yet He encourages us and even commands us to seek His face. How do we accomplish that which is impossible with men but possible with God? The sermon outline is as follows:
I. How dare you pray to God?
II. God, be merciful to me, a sinner
III. Revive me, O Lord, for I am your servant

[Scripture reading precedes this sermon: Psalm 143 and Romans 10:1-11]