Biblical hope is not calculated, not contingent; it is absolute. We know that God always intends good for those who hope in Him. Biblical hope is more of an expectation, with an element of eagerness. As we read in Hebrews 11:1, "Faith is the assurance of things hoped for".
The covenent between God and Abraham is an example of Biblical hope. Most important to us God gave a promise to Abraham of universal blessing for mankind (Genesis 12:3). In Genesis 22, we see God call Abraham to sacrfice to Isaac. We also see God confim this universal blessing. God's reason for this blessing is simple - "because you have obeyed my voice" (22:18).
All these promises are prophetic of things which were yet to come. They required a firm conviction of hope, which was often tested. We too must imitate the patriarch's steadfast hope, trusting in God's promises to us.