Todays Israel is a land that borders the Mediterranean Sea from Egypt to Lebanon; encompassing 20,770 square kilometers, of which 440 square kilometers are water, an area slightly smaller than the State of New Jersey.
http://focusonjerusalem.com/ipl.html
The territory was about 60,000 square miles, 144 miles in length from the north to the south, 40 miles across the southern border, and 20 miles along the northern border. Joshua 15:1-12 is another passage that gives the boundaries of the land that the Israelites occuppied under Joshua. It was the land of Canaan.
https://www.neverthirsty.org/bible-qa/qa-archives/question/what-does-the-map-of-the-promised-land-look-like/
[Benjamin Netanyahu, 2012] Today there is much dispute over the borders of the land of Israel. At one extreme some claim Israel should not even exist and for them the border issue is academic. At the other extreme, the 'hard right' in Israel claim all of the Biblical land established by God's covenenant to Abraham.
http://seekingtruth.co.uk/israel_borders.htm
In Numbers 34:2 God explicitly states they were inheriting the land of Canaan. The western border of the Promised Land started with the coastline along the Sea of Galilee. The northern border is defined by a horizontal line that crossed through Mount Hor, Lebo-hamath, Zeded, Ziphon, and Hazarenan.
https://www.neverthirsty.org/bible-qa/qa-archives/question/what-does-the-map-of-the-promised-land-look-like/
According to the Book of Genesis, the land was first promised by God to the descendants of Abram; the text is explicit that this is a covenant between God and Abram for his descendants.
https://en.wikipedia.org/wiki/Land_of_Israel
Israels Promised Land. Note: This article is based on the Bible, but much of its format was influenced by the booklet entitled Israels Right to the Land! by Dr. David L. Hocking, Senior Pastor of Calvary Church of Santa Ana, California, Multnomah Press, 1987. Preface.
http://focusonjerusalem.com/ipl.html
Canaan (The Promised Land) Region between the Jordan River and the Mediterranean Sea. Canaan is an early name for what is often called Israel or Palestine. It extends along the coast of the eastern Mediterranean. Lebanon lies to the north and Egypt is to the south. The eastern border is the Jordan River. Canaan was the land that God promised to Abraham (Gen 12:1-3), who resided at different places in the country, mainly in the south. Abraham's descendants migrated to Egypt during a period of famine and were enslaved there.
http://www.bibletutor.com/level1/program/start/places/canaan.htm
This Lebanon; this emphatically, as being the most eminent mountain in Syria, and the northern border of the land: or this which is within my view; as if the Lord appeared to him in the form of a man, and pointed to it.
http://biblehub.com/commentaries/joshua/1-4.htm
Israel's Legal Borders under International Law. Today there is much dispute over the borders of the land of Israel. At one extreme some claim Israel should not even exist and for them the border issue is academic. At the other extreme, the 'hard right' in Israel claim all of the Biblical land established by God's covenenant to Abraham.
http://seekingtruth.co.uk/israel_borders.htm
Lebanon is spoken of as this Lebanon, because visible from the neighborhood in which Israel was encamped. (Compare Deuteronomy 3:8-9.) The wilderness of the text is the Desert of Arabia, which forms the southern, as Lebanon does the northern, limit of the promised land. The boundaries on the east and west are likewise indicated; and the intervening territory is described generally as all the land of the Hittites..
http://biblehub.com/commentaries/joshua/1-4.htm
what is northern border of promised land
Lebanon is the Northern border of the promised land. Lebanon is the northern border of the promised land.