In these three readings I see that there is something in common: it is movement. In the first reading, movement is the journey [itself]; in the second reading, movement is in the up-building of the Church. In the third, in the Gospel, the movement is in [the act of] profession: walking, building, professing.
Walking: the House of Jacob. “O house of Jacob, Come, let us walk in the light of the Lord.” This is the first thing God said to Abraham: “Walk in my presence and be blameless.” Walking: our life is a journey and when we stop, there is something wrong. Walking always, in the presence of the Lord, in the light of the Lord, seeking to live with that blamelessness, which God asks of Abraham, in his promise.