Bible Verses About Sincerity: Our service to God

`And now, fear ye Jehovah, and serve Him, in perfection and in truth, and turn aside the gods which your fathers served beyond the River, and in Egypt, and serve ye Jehovah;

but, there cometh an hour, and it now is, when the true worshippers will worship the Father in spirit and truth, for the Father also doth seek such to worship him;

God is a Spirit, and those worshipping Him, in spirit and truth it doth behove to worship.'