Who can say, "I have made my heart pure;
I am clean from my sin"?
Let us give thanks now that there is one man who in his human nature was able to say this - Jesus Christ. And because he was able to do so, he qualified to be our sacrificial lamb who made atonement for our sins. Because his heart was pure, he was able to purify our hearts. Because he was always clean, he was able to cleanse us from sin. His sacrifice once and for all removed the guilt of our sins, so that though we cannot claim we have made our hearts pure and cleansed ourselves from sin, we can nevertheless come before our God with hearts that have been purified and cleansed by our Lord. He was not ashamed to call us his brothers and sisters; he is now our sympathetic High Priest who is heard by his Father as he intercedes for us.
All praise be to our Lord Jesus Christ who alone could answer this question with a resounding, "Here I am; I have come to do your will." Because he did, you may now "with confidence draw near to the throne of grace, that you may receive mercy and find grace to help in time of need" (Hebrews 4:16).