'Solemn' in the Bible

And God said, “This is the token (visible symbol, memorial) of the [solemn] covenant which I am making between Me and you and every living creature that is with you, for all future generations;

I set My rainbow in the clouds, and it shall be a sign of a covenant between Me and the earth.

and I will [compassionately] remember My covenant, which is between Me and you and every living creature of all flesh; and never again will the water become a flood to destroy all flesh.

And God said to Noah, “This [rainbow] is the sign of the covenant (solemn pledge, binding agreement) which I have established between Me and all living things on the earth.”

“I will establish My covenant (everlasting promise) between Me and you,And I will multiply you exceedingly [through your descendants].”

“As for Me, behold, My covenant is with you,And [as a result] you shall be the father of many nations.

I will establish My covenant between Me and you and your descendants after you throughout their generations for an everlasting covenant, to be God to you and to your descendants after you.

But God said, “No, Sarah your wife shall bear you a son indeed, and you shall name him Isaac (laughter); and I will establish My covenant with him for an everlasting covenant and with his descendants after him.

So Abraham instructed his servant, who was the oldest member of his household and in charge of everything he owned, "Make this solemn oath to me

"The Lord, the God of heaven, who took me from my father's house and the land of my relatives, promised me with a solemn oath, 'To your descendants I will give this land.' He will send his angel before you so that you may find a wife for my son from there.

So the servant made a solemn oath to his master Abraham regarding this matter.

Remain in this land, and I'll be with and bless you by giving all these lands to you and to your descendants in fulfillment of my solemn promise that I made to your father Abraham.

Then he made this solemn vow: "If God remains with me, watches over me throughout this journey that I'm taking, gives me food to eat and clothes to wear,

I am the God of Bethel, where you poured oil on the stone marker and made a solemn vow to Me. Get up, leave this land, and return to your native land.’”

As the time approached for Israel to die, he called for his son Joseph and addressed him. "Please," he asked, "if you're happy with me, make a solemn promise that you'll treat me fairly and kindly by not burying me in Egypt.

When the Canaanite inhabitants of the land saw the mourning at the threshing floor of Atad, they said, “This is a solemn mourning on the part of the Egyptians.” Therefore the place is named Abel-mizraim. It is across the Jordan.