Charles H. Spurgeon on Psalms 123:1

Whole Psalm. This psalm (as ye see) is but short, and therefore a very fit example to show the force of prayer not to consist in many words, but in fervency of spirit. For great and weighty matters may be comprised in a few words, if they proceed from the spirit and the unspeakable groanings of the heart, especially when our necessity is such as will not suffer any long prayer. Every prayer is long enough if it be fervent and proceed from a heart that understandeth the necessity of the saints. —Martin Luther.

Whole Psalm. The change of performers in this psalm is very evident; the pronoun in the first distich is in the first person singular, in the rest of psalm the first plural is used. —Stephen Street.

Whole Psalm. This psalm has one distinction which is to be found in "scarcely any other piece in the Old Testament." In the Hebrew it has many rhymes. But these rhymes are purely accidental. They result simply from the fact that many words are used in it with the same inflections, and therefore with the same or similar terminations. Regularly recurring and intentional rhymes are not a characteristic of Hebrew poetry, any more than they were of Greek or Latin poetry. —Samuel Cox.

Unto thee lift I up mine eyes. He who previously lifted his eyes unto the hills, now hath raised his heart's eyes to the Lord himself. —The Venerable Bede (672-735), in Neale and Littledale.