In regards to Revelation 5:8 How exactly do you derive an intercession? Maybe no one has responded to your satisfaction or because it makes no sense.
The bowls and the incense represent the prayers of all the saints through all the ages that the promised redemption might come.
Luke 1:8 (regarding Zacharias) Now it happened {that} while ***he was performing his priestly service before God ***in the {appointed} order of his division, 9
according to the custom of the priestly office, he was chosen by lot
to enter the temple of the Lord and burn incense. 10 And ***the whole multitude of the people were in prayer outside at the hour of the incense offering. ***
Multiply that scene of people offering prayers TO GOD by hundreds or thousands of years and this is the picture you see represented by the incense. Prayers offered to God by the people; not any intercessor by saints petitioning for those on earth to God as you have implied.
Revelation 8 is the same principle, but a little more detailed because there is angel acting as an OT priest and the saints in heaven are adding to the prayers from previous; praying for Satan to be defeated, but this has to do with the timing, most of the seals have been open and all that has been prophesied is about to reach a climax.
Is this person accurate concerning incense at the Mass?
Father William Saunders
Why do priests use incense at Mass? Where does it come from?—A reader in Alexandria
The use of incense in the ancient world was common, especially in religious rites where it was used to keep demons away. Herodotus, the Greek historian, recorded that it was popular among the Assyrians, Babylonians and Egyptians. In Judaism, incense was included in the thanksgiving offerings of oil, rain, fruits, wine (cf. Numbers 7:13-17). The Lord instructed Moses to build a golden altar for the burning of incense (cf. Exodus 30:1-10), which was placed in front of the veil to the entrance of the meeting tent where the ark of the covenant was kept.
We do not know exactly when the use of incense was introduced into our Mass or other liturgical rites. At the time of the early Church, the Jews continued to use incense in their own Temple rituals, so it would be safe to conclude that the Christians would have adapted its usage for their own rituals…The purpose of incensing and the symbolic value of the smoke is that of purification and sanctification. For example, in the Eastern Rites at the beginning of Mass, the altar and sanctuary area were incensed while Psalm 50, the “Miserere,” was chanted invoking the mercy of God. The smoke symbolizes the prayers of the faithful drifting up to heaven: Sounds like they are imitating the OT Levitical-style ritual.
ewtn.com/library/ANSWERS/INCENSE.htm