This is the Apolytikion (Troparion) and Theotokion for the services on Saturday of the Souls, Tone 8/Plagal Fourth Mode. "O only Creator . . . (O thou who by the depth . . .)," and "We have verily accepted thee . . . (Thee do we have as a wall . . .).
These are the Katabasiae of the Canon for Odes 1-9 on Cheese Fare (Forgiveness) Sunday, Tone 6/Plagal Second Mode. (The same are used on the Sunday of the Pharisee and Publican.) "When Israel walked on foot . . ."