Hebrews 4: 16

¹⁶Let us therefore come boldly unto the throne of grace, that we may obtain mercy, and find grace to help in time of need.

Jeremiah 29: 10 - 13

¹⁰For thus saith the LORD, That after seventy years be accomplished at Babylon I will visit you, and perform my good word toward you, in causing you to return to this place.
¹¹For I know the thoughts that I think toward you, saith the LORD, thoughts of peace, and not of evil, to give you an expected end.
¹²Then shall ye call upon me, and ye shall go and pray unto me, and I will hearken unto you.
¹³And ye shall seek me, and find me, when ye shall search for me with all your heart.

Daniel 9: 2 - 4

²In the first year of his reign I Daniel understood by books the number of the years, whereof the word of the LORD came to Jeremiah the prophet, that he would accomplish seventy years in the desolations of Jerusalem.
³And I set my face unto the Lord God, to seek by prayer and supplications, with fasting, and sackcloth, and ashes:
⁴And I prayed unto the LORD my God, and made my confession, and said, O Lord, the great and dreadful God, keeping the covenant and mercy to them that love him, and to them that keep his commandments;

Daniel 9: 19

¹⁹O Lord, hear; O Lord, forgive; O Lord, hearken and do; defer not, for thine own sake, O my God: for thy city and thy people are called by thy name.

Psalms 86: 6 - 8

⁶Give ear, O LORD, unto my prayer; and attend to the voice of my supplications.
⁷In the day of my trouble I will call upon thee: for thou wilt answer me.
⁸Among the gods there is none like unto thee, O Lord; neither are there any works like unto thy works.

James 5: 16

¹⁶Confess your faults one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man availeth much.

Psalms 55: 16 - 17

¹⁶As for me, I will call upon God; and the LORD shall save me.
¹⁷Evening, and morning, and at noon, will I pray, and cry aloud: and he shall hear my voice.

Philippians 4: 6 - 7

⁶Be careful for nothing; but in every thing by prayer and supplication with thanksgiving let your requests be made known unto God.
⁷And the peace of God, which passeth all understanding, shall keep your hearts and minds through Christ Jesus.