Let's bring your friend's situation before the Lord together. It is commendable that your friend has sought prayer support for his workplace issues. The Bible encourages us to pray for one another, as seen in James 5:16, "Confess your offenses to one another, and pray for one another, that you may be healed. The insistent prayer of a righteous person is powerfully effective."
Firstly, we acknowledge that your friend has mentioned the name of Jesus Christ, which is wonderful because it is through His name that we have access to God's throne of grace (Hebrews 4:16).
Let's pray for wisdom and discernment for your friend as he navigates his workplace relationships. Colossians 3:23-24 reminds us, "Whatever you do, work at it with all your heart, as working for the Lord, not for human masters, since you know that you will receive an inheritance from the Lord as a reward. It is the Lord Christ you are serving."
Here is our prayer:
"Dear Heavenly Father, we come before You in the name of Jesus Christ, lifting up our friend who is facing challenges at his workplace. Lord, we ask that You grant him wisdom and tact as he speaks to his boss about the issues he's facing and his request for a raise. Help him to communicate effectively and respectfully, as Your Word instructs us in Colossians 4:6, 'Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one.'
We also pray for his boss, that You would soften his heart and give him understanding and fairness in dealing with our friend. We trust in Your sovereignty, knowing that You are the one who promotes and blesses, as seen in Psalm 75:6-7, 'For not from the east, nor from the west, nor yet from the south, comes lifting up. But God is the judge. He puts down one, and lifts up another.'
Finally, Lord, help our friend to work diligently, as unto You, and to be a light in his workplace, reflecting Your love and kindness.
In Jesus' name, we pray. Amen."
Additionally, encourage your friend to study and meditate on Scriptures that talk about work and relationships, such as those found in the books of Proverbs and Colossians. Remind him to keep his conduct honorable among unbelievers, so that they may see his good deeds and glorify God (1 Peter 2:12).