An insincere profession will be distinguished by partiality in its observances. It will practise some duties and reject others, believe some doctrines and hesitate to admit others. Influenced by many subordinate considerations, it will select those requirements which are most easily performed, most calculated to attract public attention, or most conformable to natural prepossessions. It will dispense with some things as difficult, and with others as unnecessary or unimportant. "Then," exclaimed the Psalmist, "shall I not be ashamed when I have respect unto _all_ thy commandments." 4. Elizabeth and her aged companion were distinguished also for a piety which was _blameless_. It is possible to merit blame even in our very acts of religious obedience. How seldom do we attain that purity of _motive_, that unostentatious simplicity of _manner_, that _uniformity_ of conduct, which constitute a _blameless_ piety! In this respect we have daily reason, at the footstool of mercy, to deplore our deficiency, our lanquor, our lukewarmness of spirit, our unprofitableness and vileness. "If thou, Lord, wert strict to mark iniquity, O Lord, who could stand?" There is not a prayer we utter but would be rejected, were it not for the prevalence of the Redeemer's intercession, nor a service we perform, but is so defiled with guilt that it would be an abominable offering, but for the efficacy of that blood which "cleanseth us from all sin." Nor, indeed, was the piety of Zacharias and Elizabeth in itself "_blameless_," irrespective of this atonement; nor were they "_righteous_," but as accepted and justified "through the redemption that is in Christ Jesus." To a lively faith they, however, united a holy conversation, and an habitual obedience: their life was a perpetual sacrifice to God, and diffused around a sweet savour of piety.