The Hebrew letter daleth or dalet [ד] is also the word for “door”, signifying humility and receptiveness. Alefbet says dal is “the realization that as humans, we having nothing of our own, but are entirely dependent on the creator and that every breath and movement is given to us from him”.
This is certainly the attitude of the psalmist in today’s section. We find him eager to receive knowledge, understanding and practical affirmation of the truth of God in his daily walk, reflecting the underlying meaning of the letter with which each line commences.