Exodus 12:2 establishes the first month of the calendar; Exodus 19:1's 'third month' depends on that definition, linking the timeline.

Exodus 16:1 places Israel at the wilderness of Sin in the second month; Exodus 19:1 continues the journey to Sinai in the third month.

Exodus 3:12 promised Israel would serve God on this mountain; Exodus 19:1 records their arrival at Sinai, fulfilling that sign.

Numbers 33:15 reiterates Israel's camping at Sinai, matching Exodus 19:1's arrival.

Leviticus 25:1 places God's speech on Mount Sinai, the same location where Israel arrived in Exodus 19:1, continuing the Sinai narrative.

Numbers 1:1 dates God's speech in the Desert of Sinai, echoing the location and timing of Exodus 19:1—both after the Exodus.

Numbers 10:11 marks the departure from Sinai, contrasting with the arrival in Exodus 19:1, bookending Israel's stay at the mountain.

Numbers 10:12 describes the departure from Sinai after the cloud lifted, directly continuing from the arrival in Exodus 19:1.

Deuteronomy 1:6 recalls God's command to leave Horeb (Sinai), the same mountain where Israel camped in Exodus 19:1.

Acts 7:53 refers to receiving the law through angels at Sinai, which follows Israel's arrival in Exodus 19:1.

Acts 7:30 places the burning bush at Mount Sinai, the same mountain where Israel later arrived in Exodus 19:1—two different encounters.