Cross reference
1 Chronicles 12:33
33 Of Zebulun, going forth to the host, arranging battle with all instruments of battle, `are' fifty thousand, and keeping rank without a double heart.
Psalms 12:2
2 Vanity they speak each with his neighbour, Lip of flattery! With heart and heart they speak.
John 1:47
47 Jesus saw Nathanael coming unto him, and he saith concerning him, `Lo, truly an Israelite, in whom guile is not;'