Contradiction with John 4:24
Exodus 26:21 describes a physical structure and materials, while John 4:24 emphasizes worship in spirit, suggesting a departure from tangible forms.
John 4:24: God [is] a Spirit: and they that worship him must worship [him] in spirit and in truth.
Contradiction with Acts 7:48
Exodus 26:21 explains the building of a tabernacle, whereas Acts 7:48 states that the Most High does not dwell in temples made with hands.
Acts 7:48: Howbeit the most High dwelleth not in temples made with hands; as saith the prophet,