'Acceptable' in the Bible

I will bring them to My holy mountainand let them rejoice in My house of prayer.Their burnt offerings and sacrificeswill be acceptable on My altar,for My house will be called a house of prayerfor all nations.”

Will the fast I choose be like this:A day for a person to deny himself,to bow his head like a reed,and to spread out sackcloth and ashes?Will you call this a fastand a day acceptable to the Lord?

All the flocks of Kedar will be gathered to you;the rams of Nebaioth will serve youand go up on My altar as an acceptable sacrifice.I will glorify My beautiful house.