NET
21 Tychicus, my dear brother and faithful servant in the Lord, will make everything known to you, so that you too may know about my circumstances, how I am doing.
Darby
21 But in order that *ye* also may know what concerns me, how I am getting on, Tychicus, the beloved brother and faithful minister in [the] Lord, shall make all things known to you;
KJV
21 But that ye also may know my affairs, [and] how I do, Tychicus, a beloved brother and faithful minister in the Lord, shall make known to you all things: