Q. How is a pastor ordained and who does it? Is it a must or just a man made step intended to make reality of what the person has decided in dedicating his life to Christ. Is it in the Bible ?
A. The concept of ordination comes from John 15:16 (KJV) where Jesus said to His disciples, “Ye have not chosen me, but I have chosen you, and ordained you, that ye should go and bring forth fruit, and that your fruit should remain: that whatsoever ye shall ask of the Father in my name, he may give it you.” Some modern translations use the word appointed in place of ordained, which helps us understand that to be ordained is to be appointed by the Lord. Later Paul explained that the Lord has also gifted others to serve in this capacity through out the Church Age (Ephesians 4:11-12).
Many governments require pastors to be legally ordained by an established church or religious organization in order to perform certain religious functions that can also create legal responsibilities. Marriage is one example of such. Ideally being legally ordained as a pastor will coincide with the spiritual ordination described in Ephesians 4.