1 Samuel 8:18
And ye shall cry out in that day because of your king which ye shall have chosen you; and the Lord will not hear you in that day.
Cross-reference
This cross-reference (8:13) lists the king taking daughters—one specific oppression that will cause the cry that God will not answer.
Job 27:9 asks if God hears the wicked's cry in distress—the same principle of unanswered prayer for those who reject Him.
Psalm 18:41 states that the enemies cried to the Lord but He did not answer, directly echoing the consequence described here.
Proverbs 1:25-28 says those who ignore wisdom's counsel will call out and not be answered—identical logic to rejecting God's rule.
In Micah 3:4, the same cry-and-no-answer pattern appears: God hides his face when they cry out because of their evil deeds.
In 1 Kings 12:11, Rehoboam's harsh yoke fulfills Samuel's warning about oppressive kings.
In 2 Chronicles 10:11, the same harsh yoke from Rehoboam echoes Samuel's warning about king's oppression.
Isaiah 8:21 describes people in distress cursing their king and God, a parallel situation to the crying out that will go unanswered.
Proverbs 21:13 teaches that ignoring others' cries leads to one's own prayer unanswered, mirroring the people's fate for ignoring God.
Isaiah 1:15 shows God refusing to hear prayers because of bloodshed, paralleling the rejection of prayer for choosing a king over God.
In Luke 13:25, those who knock are shut out and not answered — a similar warning of delayed response and rejection.