That is the mark of a true Christian. Where love is genuine, the failings and weaknesses of others are overlooked and forgiven. Love looks for the best in every situation. Without love every act and word is open to the worst interpretation because of suspicion and misunderstanding. Freely given hospitality is a physical expression of Christian love.
Christian hospitality is a needed emphasis in the modern age.
In verse 9 to be hospitable to one another . In verse 10 it is to serve one another . Note that each of us has received one or more gifts. The gifts may be spiritual gifts given by the Spirit, or they may be natural gifts used as directed by the Spirit. Both kinds of gifts are to be employed in serving others, not ourselves.