Ephesians 6:18 KJV

1 Peter 4:7 KJV
But the end of all things is at hand: be ye therefore sober, and watch unto prayer.

1 Thessalonians 5:17 KJV
Pray without ceasing.

1 Timothy 2:1 KJV
I exhort therefore, that, first of all, supplications, prayers, intercessions, and giving of thanks, be made for all men;

Acts 1:14 KJV
These all continued with one accord in prayer and supplication, with the women, and Mary the mother of Jesus, and with his brethren.

Colossians 4:2 KJV
Continue in prayer, and watch in the same with thanksgiving;

Daniel 9:20 KJV
And whiles I was speaking, and praying, and confessing my sin and the sin of my people Israel, and presenting my supplication before the LORD my God for the holy mountain of my God;

Ephesians 1:16 KJV
Cease not to give thanks for you, making mention of you in my prayers;

Jude 1:20 KJV
But ye, beloved, building up yourselves on your most holy faith, praying in the Holy Ghost,

Luke 18:1-8 KJV
And he spake a parable unto them to this end, that men ought always to pray, and not to faint; Saying, There was in a city a judge, which feared not God, neither regarded man: And there was a widow in that city; and she came unto him, saying, Avenge me of mine adversary. And he would not for a while: but afterward he said within himself, Though I fear not God, nor regard man; Yet because this widow troubleth me, I will avenge her, lest by her continual coming she weary me. And the Lord said, Hear what the unjust judge saith. And shall not God avenge his own elect, which cry day and night unto him, though he bear long with them? I tell you that he will avenge them speedily. Nevertheless when the Son of man cometh, shall he find faith on the earth?

Luke 21:36 KJV
Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.