Romans 15:4 echoes the same principle — OT writings are for our instruction, just as Paul says about Abraham here.

1 Corinthians 9:10 uses the same 'written for our sake' argument about OT commands applying to believers.

1 Corinthians 10:11 explicitly says OT events were written for our warning — mirrors Paul's claim that Abraham's righteousness was recorded for us.

2 Timothy 3:16 affirms that all Scripture is profitable — supporting Paul's claim that Abraham's account was written for our benefit.

1 Corinthians 10:6 says OT events are examples for us — akin to Paul's point that Abraham's record was written for our benefit.