These are very deep passages. Im just going to display these two because they grab me the most.

Ephesians 1

1Paul, an apostle of Christ Jesus by the will of God,
To the saints in Ephesus,[a] the faithful[b] in Christ Jesus:

2Grace and peace to you from God our Father and the Lord Jesus Christ.
Spiritual Blessings in Christ
3Praise be to the God and Father of our Lord Jesus Christ, who has blessed us in the heavenly realms with every spiritual blessing in Christ. 4For he chose us in him before the creation of the world to be holy and blameless in his sight. In love 5he[c] predestined us to be adopted as his sons through Jesus Christ, in accordance with his pleasure and will— 6to the praise of his glorious grace, which he has freely given us in the One he loves. 7In him we have redemption through his blood, the forgiveness of sins, in accordance with the riches of God's grace 8that he lavished on us with all wisdom and understanding. 9And he[d] made known to us the mystery of his will according to his good pleasure, which he purposed in Christ, 10to be put into effect when the times will have reached their fulfillment—to bring all things in heaven and on earth together under one head, even Christ.

11In him we were also chosen,[e] having been predestined according to the plan of him who works out everything in conformity with the purpose of his will, 12in order that we, who were the first to hope in Christ, might be for the praise of his glory. 13And you also were included in Christ when you heard the word of truth, the gospel of your salvation. Having believed, you were marked in him with a seal, the promised Holy Spirit, 14who is a deposit guaranteeing our inheritance until the redemption of those who are God's possession—to the praise of his glory.


Romans 11
The Remnant of Israel
1I ask then: Did God reject his people? By no means! I am an Israelite myself, a descendant of Abraham, from the tribe of Benjamin. 2God did not reject his people, whom he foreknew. Don't you know what the Scripture says in the passage about Elijah—how he appealed to God against Israel: 3"Lord, they have killed your prophets and torn down your altars; I am the only one left, and they are trying to kill me"[a]? 4And what was God's answer to him? "I have reserved for myself seven thousand who have not bowed the knee to Baal."[b] 5So too, at the present time there is a remnant chosen by grace. 6And if by grace, then it is no longer by works; if it were, grace would no longer be grace.[c]


Romans 11

7What then? What Israel sought so earnestly it did not obtain, but the elect did. The others were hardened, 8as it is written:
"God gave them a spirit of stupor,
eyes so that they could not see
and ears so that they could not hear,
to this very day."[d] 9And David says:
"May their table become a snare and a trap,
a stumbling block and a retribution for them.
10May their eyes be darkened so they cannot see,
and their backs be bent forever."[e]