3. And the covenant which we make in baptism with Christ, doth oblige us to obey him, and consequently to use his instituted means, and so to hear his ministers, and hold due communion with his churches. 4. But this doth no more enter us into a particular church, than into a particular family. For we as well oblige ourselves to obey him in family relations as in church relations. 5. When the baptized therefore is at once entered into the universal and particular church, it is done by a double consent to the double relation. By baptism he professeth his consent to be a member of Christ and his universal church; and additionally he consenteth to be guided by that particular pastor in that particular church; which is another covenant or consent. [273] Matt. xxviii. 19, 20. Quest. XXXIII. _Whether infants should be baptized, I have answered long ago in a treatise on that subject. Also what infants should be baptized? and who have right to sacraments? and whether hypocrites are univocally or equivocally christians and church members? I have resolved in my "Disput. of Right to Sacraments."_ Quest. XXXIV. _Whether an unbaptized person who yet maketh a public profession of christianity, be a member of the visible church? And so of the infants of believers unbaptized._ _Answ._ 1. Such persons have a certain imperfect, irregular kind of profession, and so of membership; their visibility or visible christianity is not such as Christ hath appointed. As those that are married, but not by legal celebration, and as those that in cases of necessity are ministers without ordination; so are such christians as Constantine and many of old without baptism. 2. Such persons ordinarily are not to be admitted to the rights and communion of the visible church, because we must know Christ's sheep by his own mark; but yet they are so far visible christians, as that we may be persuaded nevertheless of their salvation. As to visible communion, they have but a remote and incomplete _jus ad rem_, and no _jus ad re_, or legal investiture and possession. 3. The same is the case of unbaptized infants of believers, because they are not of the church merely as they are their natural seed; but because it is supposed that a person himself devoted to God, doth also devote his children to God: therefore not nature only, but this supposition arising from the true nature of his own dedication to God, is the reason why believers' children have their right to baptism: therefore till he hath actually devoted them to God in baptism, they are not legally members of the visible church, but only in _fieri_ and imperfectly, as is said. Of which more anon. Quest. XXXV. _Is it certain by the word of God that all infants baptized, and dying before actual sin, are undoubtedly saved; or what infants may we say so of?_ _Answ._ I. 1. We must distinguish between certainty objective and subjective; or plainlier, the reality or truth of the thing, and the certain apprehension of it.[274]