[1] The notion that it was modelled after the Christmas hymn "Corde natus ex parentis" ("Of the Father's Heart Begotten"), repeated, for instance, in Bach-scholarship,[3] lost traction in hymnology.

[4] The melody of Cruciger's hymn has some similarity with the tune of "Mein Freud möcht sich wohl mehren" ("My Joy Will Increase"), a secular love song known from the Lochamer-Liederbuch (1455).

[4] "Herr Christ, der einig Gotts Sohn" was first published in 1524, both in the Erfurt Enchiridion and in Johann Walter's choral hymnal Eyn geystlich Gesangk Buchleyn in Wittenberg.

[6] Cruciger writes in the third stanza, for example: "so, daß wir hier mögen schmecken dein Süßigkeit im Herzen und dürsten stets nach dir" (that we may here taste your sweetness in our hearts and constantly thirst for you).

[13] Other hymns sung to the same tune include "Wenn meine Sünd' mich kränken",[b] "Dich bitten wir deine Kinder", "O Vater aller Frommen" and "Gib zum Früchten der Erden".