Why does Paul say, 'If God be for us, who can be against us?'?

The phrase 'If God be for us, who can be against us?' from Romans 8:31 underscores the assurance that believers have in God's sovereign support. It serves to highlight the idea that, since God has chosen and justified us, He will protect and provide for us through every trial and tribulation. This verse reassures Christians that, though they may face worldly difficulties, the presence and support of God make them more than conquerors. Thus, this promise instills deep confidence and hope, encouraging believers to stand firm in their faith regardless of their circumstances.