Philippians 2:26

Textus Receptus:
επειδη επιποθων ην παντας υμας και αδημονων διοτι ηκουσατε οτι ησθενησεν

King James:
For he longed after you all, and was full of heaviness, because that ye had heard that he had been sick.

Comments:
longed...full of heaviness: Epaphroditus' longing and grieving are evidence that the duty Paul imposes on the Philippians in the first few verses of this chapter, for instance, are far outweighed throughout the rest of the book (and here) by the heartfelt emotional desire and satisfaction engendered when believers "esteem other better than themselves." Such emotional completion in the fact of self-denying duty may be part of why verse 13 says God's work not only makes believers able to do according to His good pleasure, but also to will according to it.

Expanded Paraphrase:
Since he is longing after you, distressing over the fact that you heard about his infirmity.