Straggler writes:
More generally - If we, as humans, can know certain future events as a matter of God given certainty how can we be said to have free-will regarding the actions required to make those outcomes happen?
Straggler, my friend, this question has been answered but you're not paying close attention.
It's not God
giving certainty. It's man's free will exercise and God in his omniscient knowledge knows what man will do.
Did Jesus have free will relative to the crucifixion. Yes. He, the son, sharing the same spirit with God, the father; the Holy Spirit of the Trinity, had the same purpose and plans for the universe as God to effect the eventual demise of evil in the universe and establish a heavenly kingdom on earth.
The OT prophecies relative to Jesus had no effect upon the free will of Jesus, though Jesus was fully aware of them, being an avid student of scripture, including the prophecies. But Satan temped Jesus, nevertheless, hoping that he would exercise his free will and opt for the easy way out on the short haul. The devil, Satan knew that Jesus had free will. Otherwise he wouldn't have bothered to try. He knew also that if Jesus remained faithful to his mission, he, the devil's status would end and it would be curtains for him. Jesus didn't buy it and moved on to fulfill the purpose for which he was born. Jesus knew the prophecies concerning him and tried to convey them to his enemies, the rejectors of his messianic status.
Straggler, here's another point. Over the centuries of Christianity, including the present; especially the present, millions of people, knowing full well of the consequences of persecution, torture and death, determined to receive Jesus, the savior and die, if need, for the privilege of becoming children of God, the resurrection etc and receive eternal life. Jesus was fully aware at the temptations that if he abandoned his mission and submitted to Satan, likely he would escape the cross but loose his status as inheritor of God's kingdom on earth and his eternal life as well.
BUZSAW B 4 U 2 C Y BUZ SAW.
The immeasurable present eternally extends the infinite past and infinitely consumes the eternal future.