The board of trustees shall have the care, custody and oversight of the property of such incorporated church, except moneys raised for the support of the pastor or for benevolent objects. It shall not have the power, without express authority from the church itself for so doing, to alienate, sell or encumber such property, close the house of worship to the business or religious meetings of such church, or permit the same to be used for other than such meetings, or to buy, build or otherwise involve the church in expense aside from the ordinary expenditures incurred by the proper care, repair and preservation of its property.