Hebrews 11:1, 6, 8, 11-13

Now faith is the assurance (title deed, confirmation) of things hoped for (divinely guaranteed), and the evidence of things not seen [the conviction of their reality—faith comprehends as fact what cannot be experienced by the physical senses].

But without faith it is impossible to [walk with God and] please Him, for whoever comes [near] to God must [necessarily] believe that God exists and that He rewards those who [earnestly and diligently] seek Him.

By faith Abraham, when he was called [by God], obeyed by going to a place which he was to receive as an inheritance; and he went, not knowing where he was going.

By faith even Sarah herself received the ability to conceive [a child], even [when she was long] past the normal age for it, because she considered Him who had given her the promise to be reliable and true [to His word]. [Gen 17:19; 18:11-14; 21:2] So from one man, though he was [physically] as good as dead, were born as many descendants AS THE STARS OF HEAVEN IN NUMBER, AND INNUMERABLE AS THE SAND ON THE SEASHORE. [Gen 15:5, 6; 22:17; 32:12] All these died in faith [guided and sustained by it], without receiving the [tangible fulfillment of God’s] promises, only having seen (anticipated) them and having welcomed them from a distance, and having acknowledged that they were strangers and exiles on the earth. [Gen 23:4; Ps 39:12]