One way I see d'ism affecting is the doctrine of salvation.
Scripture teaches from beginning to end that God has one plan of salvation. However, dipsy's believe God has two plans; one plan of salvation for the church and another plan for the Jews. That does a job on the biblical doctrine of salvation.
Not to mention the detrimental jobs on Christology and
ecclesiology, to wit:
There is only one people of God, the Church, which includes both the OT saints and NT believers:
Eph 3:6 - Gentiles are heirs of the promises with Israel, members together of one body (the
one olive tree of
Ro 11:16-17),
Gal 3:29;
2 Cor 1:20 - sharers together in the promise to Abraham
through Christ Jesus.
God's single purpose for all time and history is the Church, to prepare a bride for his only Son, who bought her with his blood.
Eph 1:22,
5:23 - Christ is the head over (governs)
everything for the sake of the Church,
Eph 2:6 - the Church is seated with him
now in the heavenly realms,
Eph 3:3-6 - the Church is the
mystery which was hidden in the riddles of OT prophecies (
Ge 22:18;
Isa 42:6,
Jer 31:31-34;
Am 9:11-12;
Hos 1:6-10,
2:23*) but is now revealed; i.e., the Gentiles are now included with the Jews in God's
one olive tree, the Church (whose root is the OT patriarchs--
Ro 11:16),
Mt 21:43;
Ro 14:17-18;
Ac 8:2,
28:23 - the Church is the
Kingdom of God, not of this world (
Jn 18:36), invisible and within you, where God reigns and rules within the heart (
Lk 17:20-21).
*For explanations of these verses, see
Gal 3:8;
Lk 2:32;
Heb 8:6-13,
10:16;
Ac 15:13-18;
1 Pe 2:10;
Ro 9:24-25, respectively.
God has no other plan on earth than his Church and God has revealed no other plan for his church.
2 Co 5:17;
Gal 6:15 - the Church is God's new creation (the restoration of all things),
exceeding his original creation,
Eph 3:10-11 - the Church is the showcase of God's wisdom,
Eph 1:18;
Dt 7:6,
32:9 - the Church is God's
own personal eternal inheritance, treasure, portion,
1 Co 10:11 -
the Church is the fulfillment of the ages,
1 Pe 1:20; Heb 1:2; 9:26 - the Church is the last times and end of the ages.