Hebrews 6:18-19

So it is impossible for God to lie for we know that his promise and his vow will never change! And now we have run into his heart to hide ourselves in his faithfulness. This is where we find his strength and comfort, for he empowers us to seize what has already been established ahead of time—an unshakable hope! We have this certain hope like a strong, unbreakable anchor holding our souls to God himself. Our anchor of hope is fastened to the mercy seat in the heavenly realm beyond the sacred threshold