But Judas said: The strength of the bearer is weakened, etc. Judas speaks of the tribe of Judah’s sons. However, the question is about not being able to build the wall because an excessive amount of soil was piled up at the place of the wall, which first needed to be removed so that the foundations of the wall could be laid on solid ground. This relates to the parable of the evangelical house, whose builder dug deep; and with the accumulation of earth removed, he laid the foundation on rock that could not be toppled by any force of water or wind (Matthew VII; Luke VI). For first, the soil of earthly desires must be removed from our hearts, and then the firm and impregnable wall of good works must be built upon the foundation of faith; for whoever attempts to erect the edifice of holy action upon the soil and rubble of weak thoughts is deceived, and instead of a house or city, he will soon find, when the storm of temptation strikes, that he has built ruin.
[AD 735] Bede on Nehemiah 4:10