Lev 23:2 Speak unto the children of Israel, and say unto them, Concerning the feasts of the LORD, which ye shall proclaim to be holy convocations, even these are my feasts.
These are the feasts of the Lord, Jesus Christ. They are the same feasts he observed while on earth:
Joh 2:23 Now when he was in Jerusalem at the passover, in the feast day, many believed in his name, when they saw the miracles which he did.
They are the same feasts kept by Paul and the same one's Paul told his congregations to keep:
1Co 5:8 Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
Being Jewish has nothing to do with it.
Yes, Jesus was a jew and his earliest disciples were jews.
So, you gonna be a jew too?
Or are you simply lost in the time warp?