1 Peter 5:8-9

Be self-controlled and alert. Your enemy the devil prowls around like a roaring lion looking for someone to devour. Resist him, standing firm in the faith, because you know that your brothers throughout the world are undergoing the same kind of sufferings.

Be self-controlled and alert
Acts 24:25 As Paul discoursed on righteousness, self-control and the judgment to come, Felix was afraid and said, "That's enough for now! You may leave. When I find it convenient, I will send for you."
Matthew 26:40-41 Then he turned to his disciples and found them sleeping. "Could you men not keep watch with me for one hour?" he asked Peter. "Watch and pray so that you will not fall into temptation. The spirit is willing, but the body is weak."
1 Thessalonians 5:6-8 So then, let us not be like others, who are asleep, but let us be alert and self-controlled. For those who sleep, sleep at night, and those who get drunk, get drunk at night. But since we belong to the day, let us be self-controlled, putting on faith and love as a breastplate, and the hope of salvation as a helmet.

Your enemy the devil prowls around
Job 1:7 The LORD said to Satan, "Where have you come from?" Satan answered the LORD, "From roaming through the earth and going back and forth in it."

like a roaring lion, looking for someone to devour
2 Timothy 4:17 But the Lord stood at my side and gave me strength, so that through me the message might be fully proclaimed and all the Gentiles might hear it. And I was delivered from the lion's mouth.

Resist him
James 4:17 Submit yourselves, then, to God. Resist the devil, and he will flee from you.

standing firm in the faith
Colossians 2:5 For though I am absent from you in body, I am present with you in spirit and delight to see how orderly you are and how firm your faith in Christ is.

because you know that your brothers throughout the world are undergoing the same kind of sufferings
Acts 14:21-22 They preached the good news in that city and won a large number of disciples. Then they returned to Lystra, Iconium and Antioch, strengthening the disciples and encouraging them to remain true to the faith. "We must go through many hardships to enter the kingdom of God," they said.

NOTES:
Matthew 26:36-46
Read 1 Timothy 4

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984 by International Bible Society. Used by permission. All rights reserved worldwide.