At the end of page there is the Van Riebeeck’s “prayer”. It wasn’t included among the Vows of the Boer Nation, because it is not a Vow of the Boer Nation. In particular: it's not a vow, but a simple prayer; Jan van Riebeeck was not a Boer but an oppressor of their ancestors.

Van Riebeeck acted on behalf of Dutch East India Company (Vereenigde Oostindische Compagnie - VOC) - his lords and masters - and not on behalf of people who wanted to be free in southern Africa.
Van Riebeeck restrained the arrival of French Huguenots that fleeing Catholic persecutions and left southern Africa, where he didn’t want to live. He was a white, Dutch, tyrant, a colonialist who never felt himself as African, and who decided not to have descendants in Africa.

6th April 1654. Today is the second anniversary of our safe arrival with the ships Drommedaris, Reijger and Goede Hoop at this place through the Holy guidance of God to build this fortress and establish this settlement according to the instructions of our Lords and Masters, and the Lord God has hitherto given His abundant blessing to the satisfactory and successful accomplishment of all these matters.

We have therefore, resolved, and also for the first time begun to celebrate this 6th day of April in the name of the Almighty, and henceforth to set it aside for all time as a day of thanksgiving and prayer, so that our descendants may never forget the mercies we have received at the Lord’s Hands, but may always remember them to the Glory of God.