Apparenlty Jesus knew the earth was not billions of years old. He says,
"For this reason also the Wisdom of God said, 'I will send to them prophets and apostles. Some of them they will kill and some they will persecute, in order that the blood of all the prophets, shed since the foundation of the world, may be charged against this generation, from the blood of Abel to the blood of Zechariah...'"

Abel died so early in earth history Jesus used the term "since the foundation of the world."

"Only Christ is the fullness of God's revelation."
Everyday Hunter