29 For those whom he foreknew he also predestined to be conformed to the image of his Son, in order that he might be the firstborn among many brothers. 30 And those whom he predestined he also called, and those whom he called he also justified, and those whom he justified he also glorified.

— Romans 8:29-30

27 What I tell you in the dark, say in the light, and what you hear whispered, proclaim on the housetops. 28 And do not fear those who kill the body but cannot kill the soul. Rather fear him who can destroy both soul and body in hell. 29 Are not two sparrows sold for a penny? And not one of them will fall to the ground apart from your Father. 30 But even the hairs of your head are all numbered.

— Matthew 10:27-30

13 In him you also, when you heard the word of truth, the gospel of your salvation, and believed in him, were sealed with the promised Holy Spirit, 14 who is the guarantee of our inheritance until we acquire possession of it, to the praise of his glory.

— Ephesians 1:13-14

21 And it is God who establishes us with you in Christ, and has anointed us, 22 and who has also put his seal on us and given us his Spirit in our hearts as a guarantee.

— 2 Corinthians 1:21-22