Amidst the many challenges that we face as believers—temptations to sin, opposition from the world, physical sickness, relational difficulties, etc.—we need to be regularly reminded to stand firm. However, as David Platt points out in this message from Philippians 4:1, our standing firm must be “in the Lord.” We cannot stand in our own strength or rely on our own wisdom. For the sake of our unity, our sanctification, and our faithfulness to Christ’s mission, we must look to God’s Word and rely on His Spirit.