G2588–καρδία–kardia

And I will kill her children with death; and all the churches shall know that I am he who searcheth the reins and hearts: and I will give to every one of you according to your works.

καρδίας, kardias “hearts,”

For God hath put in their hearts to fulfill his will, and to agree, and give their kingdom to the beast, until the words of God shall be fulfilled.

καρδίας kardias “hearts”

How much she hath glorified herself, and lived deliciously, so much torment and sorrow give her: for she saith in her heart, I sit a queen, and am no widow, and shall see no sorrow.

καρδίᾳ kardia “heart”