[Sure, these verses(among many) illustrate that Christ would provide His people with a source of the truth of Revelation and this conduit would be His Church]
2Timothy:
12 Yea, and all that will live godly in Christ Jesus shall suffer persecution.
13 But evil men and seducers shall wax worse and worse, deceiving, and being deceived.
14 But continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them;
15 And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus.
16 All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
17 That the man of God may be perfect, throughly furnished unto all good works.
[note]
And that from a child thou hast known the holy scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus. (and especially)
All SCRIPTURE is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
The church is the people that believe all scripture is true and abide in the truth of the scripture, they are saved sinners and not a denomination of Christianity.
You're partially right, the Church is not a denomination, it is the visible institution, established by Christ to guide all Christians in the truth. Some are grateful for the institution, some choose to establish a parallel institution wile others pretend that the institution is "invisible". One faith, One truth, One Lord. This singular unity is not found in its fullness outside the Church established by Christ.