Jew and Gentile have equal opportunity to come to Christ.
When Jesus died on the cross and rose again. All were put on equal footing to believe Gospel [
John 3:16].
If I may...
Right off the bat, Christ told the disciples not to go to Gentiles (Matt 10:5).
He described Himself as sent to none but the lost sheep of the house of Israel (Matt 15:24), excluding Gentiles.
Before He ascended, He did send them out...but to start at Jerusalem, not preaching to whomever they came across first (there was again the same definite priority as before, Luke 24:47).
Peter had to be made to go see Cornelius, a righteous Gentile, and the irked disciples demanded he explain himself (Acts 11:3) [note that all those men were filled with the Holy Spirit the whole time, so the usual theories of racism and bigotry just won't fly].
The saved Jews who fled Jerusalem preached Messiah wherever they went, but not to Gentiles (Acts 11:19).
A definite change took place somewhere along the line, but before it happened the order clearly was
"to the Jew first" (Rom 1:16). But if you'd rather not discuss it, I'll drop it.