Here is Wikipedia's definition of cherry picking:
Cherry picking is the act of pointing at individual cases or data that seem to confirm a particular position, while ignoring a significant portion of related cases or data that may contradict that position.When Christians engage in online discussion of the Bible we are often accused of cherry picking by choosing Bible verses that support our postion and ignoring those that oppose it. Usually this takes the form of quoting some law found in the Old Testament and asking why we don't practice it. Since we consider all of the Bible, including the Old Testament, to be the Word of God this is a reasonable response and I will try to answer it.
God has given two kind of commands in the Bible. One kind consists of moral laws that are given to all people and are always in effect. Jesus said that these laws can be summarized in two commands:
"You shall love the Lord your God with all your heart and with all your soul and with all your mind. This is the great and first commandment. And a second is like it: You shall love your neighbor as yourself."All of the other moral laws of the Bible are simply detailed instructions on how to carry out these commands.
In addition to giving universal commands that apply to everyone God also gives commands to specific individuals and groups that apply to them but to no one else. For example, he told Noah to build an ark to keep all life from being destroyed in the flood. This command was for Noah and his family alone and God never intended for anyone else to obey it.
After he had delivered the Israelites form slavery in Egypt he chose them to be his people and gave them laws which they were required to obey. These laws included all the moral laws which apply to everyone but they also include commands which weren't ever given to anyone else. The question is, which of these commands must we obey today and which were only for Israel and don't apply to us?
Israel was a nation but the Church isn't a nation but is a body of believers who are subject to the laws of the nations in which they live. A nation has the authority to enforce its laws and punish those who violate them, even executing them if their offenses are serious enough. A church doesn't have the authority to impose any kind of physical punishment but is limited to expelling from its membership those who continue in sin and refuse to repent. A nation has the right to engage in military activities to protect itself against other nations. Christians are engaged in warfare but it is spiritual, not physical. If church leaders in the past had kept this distinction in mind the Crusades and the Inquistion probably wouldn't have taken place.
God commanded the Israelites to offer animal sacrifices to atone for their sins and he established a priesthood to carry out these sacrifices. These sacrifices were intended to show what Christ would do when he died for our sins and now that he has done this they are no longer needed. The book of Hebrews explains how he fulfilled the sacrificial laws.
Many of the commands were intended to illustrate spiritual truths. For example, Deuteronomy 25:4 forbids muzzling an ox which is treading out grain. In 1 Corinthians 9:9 and 1 Timothy 5:8 Paul quoted this command to show that Christians are to financially support those who work full time at preaching the gospel. When you read a command in the law you should think not just about its literal meaning but what spiritual truth it illustrates.
The fact that we are not required to follow some of the laws in the Bible doesn't mean that we shouldn't study them. Second Timothy 2:16,17 says,
All Scripture is breathed out by God and profitable for teaching, for reproof, for correction, and for training in righteousness, that the man of God may be competent, equipped for every good work.