Derry and Enniskillen in 1689

I, D. H., do hereby testify and declare, and upon the Holy Evangelists swear, that I will own and acknowledge Gustavus Hamilton, Esq., Chief Governor of this town of Enniskillen, and shall give due obedience to him and my superior officers in all his and their commands, and shall to the utmost of my power and ability defend him, them, and this place, with the country adjacent, together with the Protestant religion and interest, with my life and fortune, against all that shall endeavour to subvert the same. So help me God, and the holy contents of this book.