Your prayer for your brother is a holy work, for you ask that he be delivered from the very passions that bind the soul like a worm crawling in the mire. Pride, jealousy, and anger trouble him continually, and only Jesus Christ can set him free. For the lowly man is seized by no such passion; his soul is tranquil. So your desire is good, and God hears such prayers.
Yet you must know that salvation comes by the will of God, not by human merit. None of us were called because we were worthy. Even the blessed Paul attained to salvation only because it seemed good to God. So do not faint if your brother resists now. Continue in prayer, and let your own life be a testament of humility and peace. The cross of our Lord is the very sign that quenches anger; when you sign yourself, remember that price, and let your brother see in you the freedom Christ gives.
I must also remind you: true repentance is more than tears. Esau wept bitterly, yet found no place of repentance, because his grief was born of wounded pride and wrath, not a broken heart. He sought the blessing with tears, but his heart still plotted murder. So pray that your brother may be granted the godly sorrow that leads to life, a repentance that hates the sin and clings to the mercy of God. For repentance has great force; it is able to set free even him who has come to the very depth of wickedness. God has marked out for us many ways of salvation: alms, prayers, compunction, fasting, a contrite heart. If your brother will truly lay hold of these, Christ will be formed in him again.
Therefore, take courage and do not cease your intercessions. The Lord is longsuffering, not wishing that any should perish. Commend your brother to the Physician of souls, and trust that He who began a good work in your prayers will bring it to completion. Only let your own heart be watchful, for your example may speak louder than any word. And when you pray, fill your forehead with all courage, and quench every passion within yourself, that your petition may rise undefiled. So shall your brother see the beauty of Christ and be drawn to Him.