Would anyone please enlighten me about what is meant by the phrase "I bear witness" in the Shahada - There is no god but Allah and Mohammad is his messenger.
According to Webster's II dictionary
bear 1. To hold up: support ... 13. To give as testimony <bearing witness>
testimony 1. A declaration or affirmation of truth or fact, as that given before a court.
testify 1. To make a declaration of truth or fact under oath 2. To make a serious statement in support of an argument, position or asserted fact.
When I bear witness that "There is no God, but Allah" it does not mean that I have actually seen or even personally experienced Him to the exclusion of all other possible "gods". It is a statement of faith which is more than simply believing.
faith 1. Confident belief in the truth, value, or trustworthiness of a person, idea, or thing.
One's personal faith is a fundamental element of that person's being or existence. When I was a Christian, my faith that Jesus was the Son of God and that he died on the cross for my sins was a basic, fundamental part of the person I was at that time. Likewise, my present faith that there is only One God - Allah, and that Jesus was no more than a Servant, Prophet and Messenger of Allah fundamentally defines who I am today.
I do not have to observe something to be able to testify as to its truth. I do not have to observe a molecule of oxygen (2 oxygen elements) going into my lungs and observe a molecule of carbon dioxide (a carbon and 2 oxygen elements) being exhaled to have faith that is what actually happens when I breathe. I accept what the textbooks taught me as being true. Likewise, I accepted as true that Saturn has beautiful rings around it even before I actually observed them a few years ago through a powerful telescope. Again, likewise, I accept as true that there is only One God, because I accept the Quran as being true, the Word of Allah, and I accept what it says is the Truth.
When I testify that, "There is no God but Allah" it means that I accept the statement as being true to the exclusion of all other competing statements. When I testify that, "Muhammad was the Messenger of Allah" it means that I accept what Muhammad said was true and I accept his example, or Sunnah, as the pattern for my life as an illustration of Allah's Will for how to live my life.