Colossians 3:18-25 and 4:1 outline roles and responsibilities of covenantal relationships as well as hardships we experience - sometimes we may not feel like upholding our end of the covenant because we feel like the other person isn't honoring theirs. But in all covenants, we do as if doing unto the Lord. When it gets hard, we remember that He called us and it is to Him we look. In return, we gain the reward of inheritance.