How to Pray About a Job: Philippians 4:6–7
Philippians 4:6–7 does not hand you a technique for landing the right position. It calls for a daily practice of bringing all of your work and need to God, and it attaches a promise of guarding peace rather than a promised outcome.
Jeremiah 29:11 and a new job: what it promises
Jeremiah 29:11 is a word of God's settled intention toward exiles, not a promise of a particular job. Its hope rests on what God knows and will do, and the verses after it call the exiles to pray and seek him.