We must observe the comprehensiveness of the promises

           Direction Third.  Observe the full latitude of the promises.  The covenant of grace comprehends the weak Christian as well as the strong, ‘if children, then heirs,’ Rom. 8:17.  Not if children grown to this age, or that stature, but ‘if children.’  Christ hath in his family children of all sizes, some little, and others tall Christians.  If thou beest a child, though in the cradle, the promise is thy portion.  ‘All the promises of God in him are yea, and in him amen,’ II Cor. 1:20. ‘There is no condemnation to them which are in Christ Jesus,’ Rom. 8:1.  See here, it is the state and relation the creature stands in, that gives him his title to the promise.  Some saints have more grace from Christ than others, and so have more skill to improve these promises than their weaker brethren, whereby their present profits and incomes from the promise are greater.  But they have no more interest in Christ than the other, and consequently the title of the weak Christian is as true to the promise as [that] of the strong.  Shall the foot say, ‘Because I am the lowest member of the body, therefore the tongue will not speak for me, or the head take care of me?’  We will grant thee to be of the least and lowest rank of Christians; yet thou art in Christ, as the foot is in the body.  And Christ hath made provision in the prom­ise for all that are in him.  We disfigure the promises when we make them look asquint, with an eye upon one saint and not on another, whereas they belong to all: ‘He that believeth on the Son hath everlasting life,’ John 3:36.  Who now is there meant?  Only he that believes above doubting?  I trow not.  He that bids us receive the ‘weak in faith,’ will not himself reject them.