Answer:
to place our hope in God's promise to us
Step-by-step explanation:
In Hebrews 6: 13-20 we can read about how we can place our hope in God, because he is immutable and totally true, so his promises are real and will happen efficiently and satisfactorily. God made promises to Abram and many other biblical heroes and prophets and kept all promises, because in his name everything is done.
In this case, we can interpret, through this biblical passage, that we can place our hope in God, because his faithfulness is real.