Mentioned, in a ref, Knox's letters to his family and The Sixth Psalm.
====John Knox====
Letter to Thomas Upcher.<ref>[https://archive.org/details/worksofjohnknox04knox Laing D (1895), "The works of John Knox", vol 4, pp241-244. Knox's letters to his family are also relevant (Laing vol 3 pp337ff). And The Sixth Psalm of David (Laing vol 3 p119ff).]</ref> Also relevant to the topic of depression.
:"The Lord shall wipe all tears from the eyes of his Saints.