Interestingly, some Old Testament individuals did see Jesus Christ, including Abraham:
"56 [Jesus:] Your father Abraham rejoiced at the thought of seeing my day; he saw it and was glad.”
57 “You are not yet fifty years old,” they said to him, “and you have seen Abraham!”
58 “Very truly I tell you,” Jesus answered, “before Abraham was born, I am!”
- John 8:56-58
"56 [Jesus:] Your father Abraham rejoiced at the thought of seeing my day; he saw it and was glad.”
57 “You are not yet fifty years old,” they said to him, “and you have seen Abraham!”
58 “Very truly I tell you,” Jesus answered, “before Abraham was born, I am!”
- John 8:56-58
What about all of the Old Testament prophets that did not know Christ?
Where are they?
Where are they?