Hindus respect other religions. It is not difficult for them to see various levels of spiritual truth in other spiritual paths. But all religions take their practitioners to different levels of philosophical understanding, spiritual knowledge, levels of consciousness, and different abilities to perceive spiritual Truth. So all religions are not the same. This is why members of some religions are more congenial and respectful toward members of other religions, while some members of particular religions are not respectful toward those that are different, are quick to call them infidels and other derogatory names, and say that they are going to hell, or tell them that they need to convert in order to be “saved”. This is certainly due to a different perspective and a lack of understanding that we all worship the same Supreme Being, though in different ways or expressions. Thus, religions can be compared to the difference between an abridged dictionary and one that is unabridged. They both contain the same knowledge, but one is more complete than the other. If you are going to have a dictionary, you might want to get the best one available, and that would be the unabridged dictionary, or the one that is most complete in its knowledge. And that is like the Vedic spiritual texts, which compiles a library of texts for those who want to understand the intricacies of spiritual knowledge.
In simple words, One personified as perfect - par excellence is God. One who is Virtue-Incarnate is God. The One who has lived to the infinite limits of right conduct is God. An example of such a person in Hindu history is Maryada Purshottama Shree Rama or Sri Krishna. A person who had shown such qualities of par-excellence and can guide the rest of society to follow the right conduct in living is known as the Incarnation of God, or an avatara, God who descends into this material realm. Or as the Vedanta-Sutras also say, God, the Absolute Truth, is He from whom all else manifests.