Yes it is. In God's final warning messages to the world we find a call to worship the Creator.
Revelation 14:6-7
6 And I saw another angel fly in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people, 7 Saying with a loud voice, Fear God, and give glory to him; for the hour of his judgment is come: and worship him that made heaven, and earth, and the sea, and the fountains of waters.
The call to worship in Revelation 14:7 brings us back to the Sabbath Commandment which God set aside specifically for holy purposes:
Exodus 20:8-11
8 Remember the sabbath day, to keep it holy.
9 Six days shalt thou labour, and do all thy work:
10 But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates:
11 For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it.
Throughout the scriptures we can see an emphasis on the recognition of the Creator.
Revelation 4:11
Thou art worthy, O Lord, to receive glory and honour and power: for thou hast created all things, and for thy pleasure they are and were created.
Nehemiah 9:6
Thou, even thou, art Lord alone; thou hast made heaven, the heaven of heavens, with all their host, the earth, and all things that are therein, the seas, and all that is therein, and thou preservest them all; and the host of heaven worshippeth thee.
Psalm 33:6
By the word of the Lord were the heavens made; and all the host of them by the breath of his mouth.
Psalm 96:4-5
4 For the Lord is great, and greatly to be praised: he is to be feared above all gods.
5 For all the gods of the nations are idols: but the Lord made the heavens.
Psalm 121:1-2
1 I will lift up mine eyes unto the hills, from whence cometh my help.
2 My help cometh from the Lord, which made heaven and earth.
Isaiah 45:18
For thus saith the Lord that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I am the Lord; and there is none else.
Acts 4:24
And when they heard that, they lifted up their voice to God with one accord, and said, Lord, thou art God, which hast made heaven, and earth, and the sea, and all that in them is:
By keeping the Sabbath holy, as He commanded us, we show our love for Him and give recognition of His authority in our life.
1 John 5:1-3
1Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.2 By this we know that we love the children of God, when we love God, and keep his commandments. 3 For this is the love of God, that we keep his commandments: and his commandments are not grievous.
Now some people say it doesn't matter what day we worship and God doesn't care, but He does.
Isaiah 58:14
13 If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the Lord, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: 14 Then shalt thou delight thyself in the Lord; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the Lord hath spoken it.
And Christ Himself set for us the example...
Luke 4:16
And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read.
Revelation 14:6-7
6 And I saw another angel fly in the midst of heaven, having the everlasting gospel to preach unto them that dwell on the earth, and to every nation, and kindred, and tongue, and people, 7 Saying with a loud voice, Fear God, and give glory to him; for the hour of his judgment is come: and worship him that made heaven, and earth, and the sea, and the fountains of waters.
The call to worship in Revelation 14:7 brings us back to the Sabbath Commandment which God set aside specifically for holy purposes:
Exodus 20:8-11
8 Remember the sabbath day, to keep it holy.
9 Six days shalt thou labour, and do all thy work:
10 But the seventh day is the sabbath of the Lord thy God: in it thou shalt not do any work, thou, nor thy son, nor thy daughter, thy manservant, nor thy maidservant, nor thy cattle, nor thy stranger that is within thy gates:
11 For in six days the Lord made heaven and earth, the sea, and all that in them is, and rested the seventh day: wherefore the Lord blessed the sabbath day, and hallowed it.
Throughout the scriptures we can see an emphasis on the recognition of the Creator.
Revelation 4:11
Thou art worthy, O Lord, to receive glory and honour and power: for thou hast created all things, and for thy pleasure they are and were created.
Nehemiah 9:6
Thou, even thou, art Lord alone; thou hast made heaven, the heaven of heavens, with all their host, the earth, and all things that are therein, the seas, and all that is therein, and thou preservest them all; and the host of heaven worshippeth thee.
Psalm 33:6
By the word of the Lord were the heavens made; and all the host of them by the breath of his mouth.
Psalm 96:4-5
4 For the Lord is great, and greatly to be praised: he is to be feared above all gods.
5 For all the gods of the nations are idols: but the Lord made the heavens.
Psalm 121:1-2
1 I will lift up mine eyes unto the hills, from whence cometh my help.
2 My help cometh from the Lord, which made heaven and earth.
Isaiah 45:18
For thus saith the Lord that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I am the Lord; and there is none else.
Acts 4:24
And when they heard that, they lifted up their voice to God with one accord, and said, Lord, thou art God, which hast made heaven, and earth, and the sea, and all that in them is:
By keeping the Sabbath holy, as He commanded us, we show our love for Him and give recognition of His authority in our life.
1 John 5:1-3
1Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.2 By this we know that we love the children of God, when we love God, and keep his commandments. 3 For this is the love of God, that we keep his commandments: and his commandments are not grievous.
Now some people say it doesn't matter what day we worship and God doesn't care, but He does.
Isaiah 58:14
13 If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the Lord, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words: 14 Then shalt thou delight thyself in the Lord; and I will cause thee to ride upon the high places of the earth, and feed thee with the heritage of Jacob thy father: for the mouth of the Lord hath spoken it.
And Christ Himself set for us the example...
Luke 4:16
And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the sabbath day, and stood up for to read.
