Luke 9:51 “Now it came to pass, when the time had come for Him to be received up, that He steadfastly set His face to go to Jerusalem,”
Being a part of the Divine Essence Jesus knew the timing that the Godhead had determined beforehand for everything. Jerusalem was His target. And, thus we see this shift to go there and to begin the process that would lead to His sacrifice.
This comes fairly early in the gospel of Luke, though also it is prominent in the other gospels as well. So as we study these we should keep in mind that much of what is related is from the end of the ministry of Christ rather than the beginning.
Heavenly Father, thank You for Jesus! We are every day reminded of all that we can be because of Who He is. We are so blessed to live in Your world Father! We find reasons to complain because of the horrible consequences of sin. But, even with all that we see glimpses of the glory that is to come. In the Name of the Lord Jesus Christ I pray and praise You, Amen.