No appropriation shall be made for charitable, educational or benevolent purposes to any person or community nor to any denominational and sectarian institution, corporation or association: Provided, That appropriations may be made for pensions or gratuities for military service and to blind persons twenty-one years of age and upwards and for assistance to mothers having dependent children and to aged persons without adequate means of support and in the form of scholarship grants or loans for higher educational purposes to residents of the Commonwealth enrolled in institutions of higher learning except that no scholarship, grants or loans for higher educational purposes shall be given to persons enrolled in a theological seminary or school of theology.