Oh, that my head were waters,
And my eyes a fountain of tears,
That I might weep day and night
For the slain of the daughter of my people!
Regarding this Scripture, last year John Piper had posted on Facebook:
The Hebrew word for "weep" in Jeremiah 9:1 is bakah... From Strong's Concordance: 1058 bakah baw-kaw' a primitive root; to weep; generally to bemoan:--X at all, bewail, complain, make lamentation, X more, mourn, X sore, X with tears, weep. Plus, the Valley of Baca (Baka) in Psalm 84 (the root word is bakah) is known as the "Weeping Valley" as well as the "Thirsty Valley."
In my last post/prayer, I highlighted Hannah's example in I Samuel 1:10 –– and how in contrast to most of Israel, this woman of faith sought the help of the LORD of hosts in prayer. Hannah wept in anguish (wept sore - KJV) because she thirsted for the power and the glory of the Living God to be made manifest. She knew there was no where else to go, but to the LORD of hosts!

Photo credit: William de Brailes Hannah Prays in the Temple (edited) / {{PD-Art|PD-old-100}}
Because Hannah was a woman who acutely and keenly felt those sorrows, because she thirsted for Christ, she was enabled to pray with importunity and boldness –– her prayers were bakah prayers. In fact, in Hebrew, the phrase wept in anguish is bakah bakah!
May God grant each of us such an overwhelming thirst and desire for Jesus Christ, His Kingdom, His will, His glory, His renown, His preeminence, His Gospel, and His people that our prayers might be of the type of Jeremiah and Hannah: bakah bakah prayers!
Regarding the incident of Jesus' entering and cleansing the temple in his commentary on Matthew 21, John Calvin wrote that the zeal of our Lord ought to serve as an example to us who are living in the day of small things, a day in which we are in sore need of reformation and revival:
That zeal, indeed, by which Christ was animated to do this, ought to be held in common by all the godly; but lest any one, under the pretense of imitation, should rush forward without authority, we ought to see what our calling demands, and how far we may proceed according to the commandment of God. If the Church of God have contracted any pollutions, all the children of God ought to burn with grief; but as God has not put arms into the hands of all, let private individuals groan, till God bring the remedy. I do acknowledge that they are worse than stupid who are not displeased at the pollution of the temple of God, and that it is not enough for them to be inwardly distressed, if they do not avoid the contagion, and testify with their mouth, whenever an opportunity presents itself, that they desire to see a change for the better. But let those who do not possess public authority oppose by their tongue, which they have at liberty, those vices which they cannot remedy with their hands. (emphasis mine)
I'm no ordained minister, but my desire is that God might be pleased to use the sorrow, groaning, and zeal which God has been working in me to stir you up and spur you on in the good work of prayer in particular –– and, as God might also lead you under His authority and under the authorities He has set up within His Body, to speak and act according to His good pleasure for the cause of Christ. May our God give all of us eyes to see the declension of the Church of God today, and subsequently fill our hearts with godly groaning, burning grief, and animating zeal, such as our Lord possessed, so bakah bakah prayer after the manner of Jeremiah and Hannah might arise day and night as incense to His throne of grace in this great time of need.
Matthew Henry described Hannah in this way:
She mingled tears with her prayers. It was not a dry prayer: she wept sore. Like a true Israelite, she wept and made supplication (Hosea 12:4), with an eye to the tender mercy of our God, who knows the troubled soul. The prayer came from her heart, as the tears from her eyes.
May we show ourselves to be true Israelites. May our prayers not be dry, but may God's Spirit work in us to weep in anguish, bakah bakah, until the LORD of hosts awakes and arises and brings the remedy, until His Holy Spirit descends and baptizes us afresh, comforts all our waste places, and establishes and makes His Church a praise in the earth.
Scripture quotations unless otherwise indicated are taken from the New King James Version. Copyright © 1982 by Thomas Nelson, Inc. Used by permission. All rights reserved.