"Even now," declares the LORD,    "return to me with all your heart,    with fasting and weeping and mourning." Rend your heart    and not your garments. Return to the LORD your God,    for he is gracious and compassionate, slow to anger and abounding in love,    and he relents from sending calamity. Who knows? He may turn and relent    and leave behind a blessing— grain offerings and drink offerings    for the LORD your God.

— Joel 2:12-14 (from Ash Wednesday service)