You're misguided both in the new and old pact. God testifies he has hand picked those he loves while they were still in the womb - Esau and Jacob. Jesus spoke about not giving pearls to swine, holy things to dogs and the parable of the wheat and the tares.
26. In Romans 8:1-25 Paul describes the s/e struggle in terms of Christians–who are indwelt by the Spirit and freed from living in accordance with the sinful nature—as putting to death sinful deeds, because they are God’s children and co-heirs of Christ’s glorious resurrection.
27. In Romans 8:28-30 Paul says that those who love God were foreknown and “predestined to be conformed to the likeness of his Son”, which is akin to what Paul said in Ephesians 1:4-14, that before creating the world God chose or predestined those sinners “in Christ” to be blameless sons and receive the Holy Spirit.
28. Romans 8:31-39 elaborates on the previous point by saying that there is nothing that can separate “we” (who reflect God’s love per v.28) from Christ’s love (but Heb. 10:26-36 indicates one exception).
29. In Romans 9:1-5 Paul notes how sad it is that those who are part of the human ancestry of Christ reject him as Messiah, but being a member of Abraham’s spiritual children is what is crucial (#17).
30. Romans 9:6-13 states that God had chosen which one of Rebecca’s sons (through whom Messiah’s lineage would be traced) before they were born (cf. Mal. 1:2-3). The word translated as “hate” (miseo) is the same as in Luke 14:26 with reference to family, so a better translation would be “preferred”: loving Jacob/hating Esau refers to God preferring that Jacob’s descendants serve as the heritage for Messiah rather than to individual salvation.
31. Romans 9:14-16 stresses that s/e depends on God’s mercy rather than being achieved by human effort (#12), although the preceding context has shown that (the non-meritorious condition of) faith is involved, which truth can be stated as “God initiates; sinners cooperate—or not”, because of MFW.
32. Romans 9:17 refers to pharaoh in Exodus 9:13-35 as an example of someone whom God allowed to oppose His will so that His power might be manifested by the plagues. The OT passage indicates that pharaoh was conscious of his sin but “He and his officials hardened their hearts” (v.34b).
33. Romans 9:18 says that God “hardens whom He wants to harden”, which raises the question asked in v.19, “Why does God blame sinners who cannot resist His will?” Paul’s response (Rom. 9:20-21) is that God has the might and thus the right to determine what is right. Then he speculates (“What if”) that God might have patiently endured evildoers (#20) as evidence of His glory toward recipients of His mercy (Rom. 9:22-23).
34. In Romans 9:24-33 and 10:1-4 Paul notes that God elected to choose Gentiles with saving faith instead of Israelites who sought salvation by works and stumbled over the Gospel of Christ, even though “everyone who believes” receives righteousness or s/e.
35. Romans 10:9 states God’s requirement for s/e as “confess Jesus as the resurrected Lord”, v.10 clarifies that the condition of faith (#31) precedes the work of confession, and vs.11-13 reiterate that all sinners who call on the name of the Lord will be s/e.
36. Romans 10:18 cites Psalm 19:4, which hints that God’s s/e has been possible for everyone in the world. This implication may also be seen in Gal. 3:8, Col. 1:23 and Tit. 2:11 as well as Rom. 1:20.
37. Romans 11:5-7a refers to an elect “remnant chosen by grace”, which indicates that sinners may cooperate with God’s calling to be s/e “or not” (#35).
38. Romans 11:7b-8 needs to be understood in the context of pharaoh (#32), whose heart God allowed to be hardened. “God gave them a spirit of stupor” echoes what Paul said in Romans 1:24 & 28, that God gave fools over to perversion and a depraved mind.
39. Romans 11:11-15 speaks of the blindness of Israel as the reason s/e was offered to Gentiles,
and Paul hopes Israel will become envious (v.11 & 14) and prompted to accept Christ.
40. Romans 11:17-24 describes the situation of Israel as comparable to grafting branches onto a tree, and the condition of faith (#37) is quite explicit (v.20-23).
41. Romans 11:25-32 explains the s/e of corporate Israel as a partial and temporary hardening until all in corporate Gentiles “may” be s/e, at which time all Israel “may” be s/e.
42. Romans 11:33-36 concludes Paul’s development of the DOE by acknowledging that God’s mind is unknowable beyond what He reveals.