26 So, if one part [i.e., one Christian] suffers, then all the parts [i.e., the other Christians] should suffer with it. Or, if one part is honored, all the [other] parts should rejoice with it.
1 Corinthians 12:26 Cross References - AUV
Romans 12:15
15 Be happy with those who are joyful. Cry with those who are sad.
2 Corinthians 11:28-29
Galatians 6:2
2 Take on yourselves the [spiritual] burdens of one another, for in doing so you will be fulfilling Christ’s law [of love, John 13:35].
Hebrews 13:3
3 Remember [to pray for and help] those who are in prison, as though you [yourselves] were in prison with them. [Remember] those who are being mistreated, realizing that you [yourselves] also share [with them] a physical body [i.e., you are subject to the same kind of trials].
1 Peter 3:8
8 Now to summarize: All of you should think alike. Be sympathetically understanding [toward one another]. Be loving toward [your] brothers [and sisters]. Be tender-hearted and humble-minded.