This verse, Numbers 15:2, "Speak to the children of Israel, and tell them, ‘When you come into the land where I bring you," is part of a larger passage (Numbers 15:1-31) detailing laws about offerings and sacrifices that the Israelites were to observe once they settled in the Promised Land. Let's break down the meaning:

"Speak to the children of Israel..." - This is God directly instructing Moses (as is common throughout the book of Numbers) to deliver a specific message to the Israelites.

"...and tell them, ‘When you come into the land where I bring you..." - This is the core of the verse. Several important elements are revealed.
"...When you come into the land..." This is a statement of future fulfillment, looking forward to Israel finally entering the Promised Land. At this point in the narrative, the Israelites are wandering in the wilderness. The verse is a reminder that their ultimate destination and God's promise to Abraham would be fulfilled in the future.
"...where I bring you..." This is crucial. It emphasizes that their arrival in the land is not due to their own strength or merit, but is an act of God's divine intervention and grace. God is the one who will deliver them to the Promised Land. This should instill humility and a sense of reliance on God.

In essence, the verse signifies a conditional promise. God is reminding the Israelites that He is bringing them to the Promised Land, but there are obligations that come with that blessing. The laws in the subsequent verses (Numbers 15:3-31) will outline the way they should worship God and maintain their relationship with Him once they are settled in the land.

The verse serves as a reminder that:

God is faithful to His promises.
The land is a gift from God, not something earned.
The Israelites have a responsibility to obey God's commands once they enter the land.
The instructions are forward-looking, addressing the future realities of life in the Promised Land.