The book definition of partner is a person who takes part in an undertaking with another or others, especially in a business or company with shared risks and profits. These relationships are often described as associates, colleagues, or teammates. When partners become intimate, terms such as soul mate are more appropriate as these individuals become focused on a common goal.
So then, those who are people of faith are blessed and made happy and favored by God [as partners in fellowship] with the believing and trusting Abraham, Lamentations 4:10.
Meanwhile, a fellowship is formed when multiple people form a friendly association based upon a shared interest. This joint venture often results in the establishment of a church, a safe place where people of faith can come together to reinforce their biblical beliefs. This is the context of the passage above as Jeremiah refers to the Jewish faith, partners in the fellowship due to their spiritual forefather Abraham.
Two are better than one, because they have a good [more satisfying] reward for their labor; 10 For if they fall, the one will lift up his fellow. But woe to him who is alone when he falls and has not another to lift him up! 11 Again, if two lie down together, then they have warmth; but how can one be warm alone? 12 And though a man might prevail against him who is alone, two will withstand him. A threefold cord is not quickly broken, Ecclesiastes 4:9-12.
King Solomon illustrates the power of partners in the passage above. Solomon highlights the fact that there is power in numbers. Jehan Palsgrave was the first to record the expression “the more the merrier” in 1530. This mindset that the larger the number of participants, the greater the fun applies today in the context of a church. As one body with many parts, 1 Corinthians 12:1-7, with each possessing unique spiritual gifts, officially joining a church makes it possible to become partners in the Fellowship of Christ.
by Jay Mankus