Why Don't Christians Have A Jubilee Year Like In The Bible

[Huggy Bear]

I understand that wikipedia is not a good source but there definition of the Hebrew Jubilee is easy to understand

The Jubilee (Hebrew yovel יובל) year is the year at the end of seven cycles of shmita (Sabbatical years), and according to Biblical regulations had a special impact on the ownership and management of land in the Land of Israel; there is some debate whether it was the 49th year (the last year of seven sabbatical cycles, referred to as the Sabbath's Sabbath), or whether it was the following (50th) year. Jubilee deals largely with land, property, and property rights. According to Leviticus, slaves and prisoners would be freed, debts would be forgiven and the mercies of God would be particularly manifest. Leviticus 25:8-13 states:

Many of my religious friends tithe because they feel that giving ten percent is required of them from the bible. The New Testament does not talk about tithing so they are looking at Old Testament laws.

If you happen to live during that 49th year, it would be nice to have your debt forgiven or be freed from prison.

you have to understand that those laws under the "old covenant' were temporary and nothing more than a foreshadowing (for lack of a better word) of what was to come.
For example, Christians are still supposed to "keep the sabbath holy" but we no longer observe a day as the sabbath, the holy spirit is the sabbath (which means "rest") for the Christian.

Matthew 11
28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
29 Take my yoke upon you, and learn of me; for I am meek and lowly in heart: and ye shall find rest unto your souls.

Hebrews 4
8 For if Jesus had given them rest, then would he not afterward have spoken of another day.
9 There remaineth therefore a rest to the people of God.
10 For he that is entered into his rest, he also hath ceased from his own works, as God did from his.
11 Let us labour therefore to enter into that rest, lest any man fall after the same example of unbelief.

Ephesians 4:30
And grieve not the holy Spirit of God, whereby ye are sealed unto the day of redemption.

And Likewise, the Jubilee is a foreshadowing...
The human race being born into bondage of sin, being liberated through hearing the gospel.
Those that heard the jubilee trumpet, but liked their master and wanted to remain in bondage, would have a hole bored into their ear lobe signifying they were forever to remain in bondage. The same goes for those that hear the gospel and reject it, are forever slaves to sin.

Hebrews 10
26 For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins