When did Abraham see Jesus' day? John 8:56-57
John 8:56-58 (NASB)
56 "Your father Abraham rejoiced to see My day, and he saw it and was
glad.” 57 So the Jews said to Him, “You are not yet fifty years old,
and have You seen Abraham?” 58 Jesus said to them, “Truly, truly, I
say to you, before Abraham [b]was born, I am.”
Abraham believed in God' promise and looked forward to the arrival of Jesus. Why?
Abraham and Sarah were old and advanced in age, well past the age of reproduction,( Gen. 18:9-11) but God miraculously restored their ability to reproduce.
Hebrews 11:11-12 (NASB)
11 "By faith even Sarah herself received [a]ability to conceive, even
beyond the proper time of life, since she considered Him faithful who
had promised. 12 Therefore there was born even of one man, and him as
good as dead at that, as many descendants as the stars of heaven in
number, and innumerable as the sand which is by the seashore."
God told Abraham to sacrifice Isaac, then about 25 years old, when just about to strike Isaac dead,God' angel intervened and said: "Do not stretch out your hand against the lad, and do nothing to him; for now I know that you fear God, since you have not withheld your son, your only son, from Me.”(Gen. 22:12 NASB)
Abraham considered that God was able to raise Isaac from the dead; and from there he receive him back , in an illustrative way.
Hebrews 11:17-19 (NRSV)
17 "By faith Abraham, when put to the test, offered up Isaac. He who
had received the promises was ready to offer up his only son, 18 of
whom he had been told, “It is through Isaac that descendants shall be
named for you.” 19 He considered the fact that God is able even to
raise someone from the dead—and figuratively speaking, he did receive
Abraham believe in the resurrection through the promised seed ,(Genesis 22:16-18) that all nations on earth will be blessed,he is still dead in the grave awaiting for the resurrection to life on earth, (Hebrews 11:8-10,13 John 5:28-29)
When all these events were happening Jesus was with His father in heaven, (Proverbs 8:30-31) and from his prehuman vantage point, noted Abraham's faith, and so he was able to tell the Jews: "Your father Abraham rejoiced to see My day, and he saw it and was glad.”
The TLB renders 8:58 as follows :
" Jesus: “The absolute truth is that I was in existence before Abraham
was ever born!”