A HEART alone (George Herbert)

A broken ALTAR, Lord, thy servant rears,
Made of a heart and cemented with tears;
Whose parts are as thy hand did frame;
No workman's tool hath touch'd the same.
                       A HEART alone
                       Is such a stone,
                       As nothing but
                       Thy pow'r doth cut.
                       Wherefore each part
                       Of my hard heart
                       Meets in this frame
                       To praise thy name.
That if I chance to hold my peace,
These stones to praise thee may not cease.
Oh, let thy blessed SACRIFICE be mine,
And sanctify this ALTAR to be thine. 

--George Herbert, The Altar             

Image source 1: https://mybrightideasblog.com/heart-shaped-beach-stones-pebble-art/
Image source 2: Altar, Our Lady of Mount Carmel, Mill Valley, https://www.facebook.com/photo/?fbid=1732773300117418&set=a.1726464817414933
Poem source