'Heartfelt' in the Bible

Indeed, in the path of Your judgments, O Lord,We have waited expectantly for You;Your name, even Your memory, is the desire and deep longing of our souls.

Though they fast, I will not hear their cry; and though they offer burnt offerings and grain offerings, I will not accept them [because they are done as obligations, and not as acts of loving obedience]. Instead I will consume them by the sword, by famine, and by pestilence.”

The Lord says to her, "Stop crying! Do not shed any more tears! For your heartfelt repentance will be rewarded. Your children will return from the land of the enemy. I, the Lord, affirm it!

Heartfelt thanks be to the God and Father of our Lord Jesus Christ--the Father who is full of compassion and the God who gives all comfort.

Receive him therefore with heartfelt Christian joy, and hold in honour men like him;

Therefore, God’s chosen ones, holy and loved, put on heartfelt compassion, kindness, humility, gentleness, and patience,

Be miserable and grieve and weep [over your sin]. Let your [foolish] laughter be turned to mourning and your [reckless] joy to gloom.

Therefore, confess your sins to one another [your false steps, your offenses], and pray for one another, that you may be healed and restored. The heartfelt and persistent prayer of a righteous man (believer) can accomplish much [when put into action and made effective by God—it is dynamic and can have tremendous power].